OIIM / O2 Micro International - ADR - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

O2 Micro International - ADR
US ˙ NASDAQ ˙ US67107W1009
HINDI NA ACTIVE ANG SIMBONG ITO

Mga Batayang Estadistika
LEI 5299007KRREO0400F739
CIK 1095348
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to O2 Micro International - ADR
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
March 17, 2023 SC 13G/A

OIIM / O2 Micro International - ADR / Grandeur Peak Global Advisors, LLC - GRANDEUR PEAK GLOBAL ADVISORS, LLC (SCHEDULE 13G/A) Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) March 3, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursua

March 13, 2023 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 000-30910 O2Micro International Limited (Exact name of registrant as specifi

March 10, 2023 SC 13G/A

OIIM / O2 Micro International - ADR / DnB Asset Management AS - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

S-8 POS 1 s8pos030823.htm S-8 POS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO.

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

S-8 POS 1 s8pos030823.htm S-8 POS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO.

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

S-8 POS 1 s8pos030823.htm S-8 POS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO.

March 8, 2023 S-8 POS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-12670 REGISTRATION STATEMENT NO. 333-98425 REGISTRATION STATEMENT NO. 333-12672 REGISTRATION STATEMENT NO. 333-101452 REGISTRATION STATEMENT NO. 333-107975 REGISTRATION STATEMENT NO. 333-116596 REGISTRATION STATEMENT NO. 333-132251 REGISTRATION STATEMENT

March 3, 2023 SC 13D/A

OIIM / O2 Micro International - ADR / Kuo Chuan-Chiung - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* O2Micro International Limited (Name of Issuer) Ordinary Shares, par value US$0.00002 per share (Title of Class of Securities) 67107W100* (CUSIP Number) Du Shyun-Dii Sterling RmB, 2Fl, Zhangjian Mansion No 289, Chun Xiao Rd, Pudong New Area Shanghai Free

March 3, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 Commission File Number: 000-3091

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

March 3, 2023 EX-99.1

O2Micro Announces Completion of Merger

EXHIBIT 99.1 O2Micro Announces Completion of Merger GEORGE TOWN, Grand Cayman, March 03, 2023 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (“O2Micro” or the “Company”), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the completion of the merger (the “Merger”) with Rim Peak Techn

March 3, 2023 SC 13E3/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 Amendment No. 3 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 Amendment No. 3 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer) O2Micro International Limited Mr. Shyun-Dii Sterling Du Mr. Chuan-Chiung Perry Kuo Right Dynamic Investments Limited FNOF Precious Honour Limited

February 13, 2023 SC 13G/A

OIIM / O2Micro International, Ltd. / Grandeur Peak Global Advisors, LLC Passive Investment

SC 13G/A 1 a53315031.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box

February 1, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2023 Commission File Number: 000-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2023 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

February 1, 2023 EX-99.1

O2Micro Announces Shareholders’ Approval of Merger Agreement

EXHIBIT 99.1 O2Micro Announces Shareholders’ Approval of Merger Agreement GEORGE TOWN, Grand Cayman, Feb. 01, 2023 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (“O2Micro” or the “Company”), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that at an extraordinary general meeting o

January 31, 2023 SC 13G/A

OIIM / O2Micro International, Ltd. / DnB Asset Management AS - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

January 19, 2023 EX-99.1

Leading Independent Proxy Advisory Firms ISS and Glass Lewis Both Recommend O2Micro Shareholders Vote “FOR” Proposed Going Private Transaction

EXHIBIT 99.1 Leading Independent Proxy Advisory Firms ISS and Glass Lewis Both Recommend O2Micro Shareholders Vote “FOR” Proposed Going Private Transaction GEORGE TOWN, Grand Cayman, Jan. 19, 2023 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (“O2Micro” or the “Company”), a global leader in the design, development and marketing of high-performance integrated

January 19, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2023 Commission File Number: 000-30

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2023 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

December 16, 2022 EX-99.1

O2Micro to Hold Extraordinary General Meeting of Shareholders

EXHIBIT 99.1 O2Micro to Hold Extraordinary General Meeting of Shareholders GEORGE TOWN, Grand Cayman, Dec. 16, 2022 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (“O2Micro” or the “Company”) , a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced it has called an extraordinary general m

December 16, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2022 Commission File Number: 000-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

December 16, 2022 EX-99.(A)(1)

Agreement and Plan of Merger, dated as of September 30, 2022, by and among the Company, Parent and Merger Sub, incorporated herein by reference to Annex A to the Proxy Statement.

Exhibit (a)-(1) PROXY STATEMENT OF THE COMPANY Shareholders of O2Micro International Limited: Re: Notice of Extraordinary General Meeting of Shareholders Dear Shareholder: You are cordially invited to attend an extraordinary general meeting of shareholders of O2Micro International Limited, an ordinary resident company with limited liability incorporated under the laws of the Cayman Islands (the “Company”), to be held on January 31, 2023 at 2:00 p.

December 16, 2022 SC 13E3/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 Amendment No. 2 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 Amendment No. 2 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer) O2Micro International Limited Mr. Shyun-Dii Sterling Du Mr. Chuan-Chiung Perry Kuo Right Dynamic Investments Limited FNOF Precious Honour Limited

November 28, 2022 CORRESP

Skadden, Arps, Slate, Meagher & Flom llp A Delaware Limited Liability Partnership

CORRESP 1 filename1.htm Skadden, Arps, Slate, Meagher & Flom llp A Delaware Limited Liability Partnership 世達國際律師事務所 DIRECT DIAL 30/F, CHINA WORLD OFFICE 2 FIRM/AFFILIATE OFFICES (8610) 6535-5599 NO. 1, JIAN GUO MEN WAI AVENUE DIRECT FAX BEIJING 100004 CHINA BOSTON (917) 777-5498 CHICAGO EMAIL ADDRESS TEL: (86-10) 6535-5500 HOUSTON [email protected] FAX: (86-10) 6535-5577 LOS ANGELES www.skad

November 28, 2022 EX-FILING FEES

Calculation of Filing Fee Tables*

Exhibit 107 Calculation of Filing Fee Tables Schedule 13E-3 (Form Type) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer and Name of Person Filing Statement) Table 1 ? Transaction Value Transaction Valuation Fee Rate Amount of Filing Fee Fees to Be Paid $ 129,058,211.

November 28, 2022 EX-99.(C)(3)

Draft Discussion Materials prepared by Needham & Company, LLC for discussion with the special committee of the board of directors of the Company, dated June 7, 2022.*

Exhibit (c)-(3) Project Oasis 1 DRAFT Subject to change Discussion Materials ???? June 2022 2022 ? 6 ? Project Oasis ??? ? Project Oasis 2 DRAFT Subject to change Oasis Historical and Projected Financials ?? ????????? Notes: Sources: Provided by Oasis Management on May 19th, 2022 and approved by the Special Committee on May 20th, 2022 2021 2022E 2023E 2024E 2025E 2026E (USD in millions) ? ?? ? ???? ? Total Revenue ?? $ 101.

November 28, 2022 SC 13E3/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 Amendment No. 1 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 Amendment No. 1 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer) O2Micro International Limited Mr. Shyun-Dii Sterling Du Mr. Chuan-Chiung Perry Kuo Right Dynamic Investments Limited FNOF Precious Honour Limited

November 28, 2022 EX-99.(A)(1)

Agreement and Plan of Merger, dated as of September 30, 2022, by and among the Company, Parent and Merger Sub, incorporated herein by reference to Annex A to the Proxy Statement.

Exhibit (a)-(1) PRELIMINARY PROXY STATEMENT OF THE COMPANY Shareholders of O2Micro International Limited: Re: Notice of Extraordinary General Meeting of Shareholders Dear Shareholder: You are cordially invited to attend an extraordinary general meeting of shareholders of O2Micro International Limited, an ordinary resident company with limited liability incorporated under the laws of the Cayman Islands (the ?Company?), to be held on ???????????????????????????????????????? at ????????????????? a.

November 16, 2022 EX-99.1

CORPORATE INFORMATION

Exhibit 99.1 CONTENTS CORPORATE INFORMATION 1 CHAIRMAN?S STATEMENT 2 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 6 FINANCIAL HIGHLIGHTS 9 CORPORATE INFORMATION Independent Auditor Deloitte & Touche Legal counsel Morrison & Foerster LLP Palo Alto office 755 Page Mill Road Palo Alto, California 94304 USA Maples and Calder (Cayman) LLP P.O. Box 309 Ugland House Grand Cayman KY1-1104 Cayma

November 16, 2022 EX-99.2

O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON WEDNESDAY, DECEMBER 14, 2022

Exhibit 99.2 November 9, 2022 O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON WEDNESDAY, DECEMBER 14, 2022 To the Shareholders of O2Micro International Limited: You are cordially invited to attend the Annual General Meeting of Shareholders of O2Micro International Limited (the ?Company?) on Wed

November 16, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 000-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

November 4, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 000-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

November 4, 2022 EX-99.1

O2Micro Reports Third Quarter 2022 Financial Results

EXHIBIT 99.1 O2Micro Reports Third Quarter 2022 Financial Results GEORGE TOWN, Grand Cayman, Nov. 04, 2022 (GLOBE NEWSWIRE) - Operational Highlights: 2022 Q3 revenue was $18.2 million, within the guidance publicly released on July 29, 2022. O2Micro expects the fourth quarter 2022 revenue to be in the range of $16.0 million to $19.0 million. O2Micro® International Limited (NASDAQ: OIIM)(O2Micro), a

October 31, 2022 EX-99.(C)(2)

Discussion Materials prepared by Needham & Company, LLC for discussion with the special committee of the board of directors of the Company, dated September 29, 2022.*

Exhibit 99.(C)(2) Project Oasis 0 Project Oasis Project Oasis 1 ? This presentation was prepared on a confidential basis exclusively for the benefit and use of the Special Committee of the Board of Directors of ?Oasis? (the ?Company?) in connection with its consideration of the proposed transaction described herein. This presentation is subject to the assumptions, qualifications and limitations se

October 31, 2022 SC 13E3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer) O2Micro Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13E-3 RULE 13e-3 TRANSACTION STATEMENT (Pursuant to Section 13(e) of the Securities Exchange Act of 1934) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer) O2Micro International Limited Mr. Shyun-Dii Sterling Du Mr. Chuan-Chiung Perry Kuo Right Dynamic Investments Limited FNOF Precious Honour Limited Rim Peak Technol

October 31, 2022 EX-99.(A)(1)

Agreement and Plan of Merger, dated as of September 30, 2022, by and among the Company, Parent and Merger Sub, incorporated herein by reference to Annex A to the Proxy Statement.

Exhibit (a)-(1) PRELIMINARY PROXY STATEMENT OF THE COMPANY Shareholders of O2Micro International Limited: Re: Notice of Extraordinary General Meeting of Shareholders Dear Shareholder: You are cordially invited to attend an extraordinary general meeting of shareholders of O2Micro International Limited, an ordinary resident company with limited liability incorporated under the laws of the Cayman Islands (the ?Company?), to be held on ???????????????????????????????????????? at ????????????????? a.

October 31, 2022 EX-FILING FEES

Calculation of Filing Fee Tables

Exhibit 107 Calculation of Filing Fee Tables Schedule 13E-3 (Form Type) O2MICRO INTERNATIONAL LIMITED (Name of the Issuer and Name of Person Filing Statement) Table 1 ? Transaction Value Transaction Valuation Fee Rate Amount of Filing Fee Fees to Be Paid $ 129,058,211.

October 31, 2022 EX-99.(C)(1)

Opinion of Needham & Company, LLC, dated September 30, 2022, incorporated herein by reference to Annex C to the Proxy Statement.

Exhibit 99.(C)(1) Annex C OPINION OF NEEDHAM & COMPANY, LLC September 30, 2022 Special Committee of the Board of Directors of O2 Micro International Limited (the ?Special Committee?) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 Grand Cayman KY1-1209, Cayman Islands Members of the Special Committee: We understand that FNOF Precious Honour Limited (?Parent?), Rim Peak Technology Li

October 13, 2022 EX-99.1

O2Micro to Announce Third Quarter 2022 Results on November 4, 2022

EXHIBIT 99.1 O2Micro to Announce Third Quarter 2022 Results on November 4, 2022 GEORGE TOWN, Grand Cayman, Oct. 12, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Third Quarter ending September 30, 2022, on Friday Novemb

October 13, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number: 000-30

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

October 3, 2022 EX-7.8

Equity Commitment Letter, dated September 30, 2022, by and among the Sponsor, Holdco and the Forebright Fund, incorporated herein by reference to Exhibit 7.8 to the Schedule 13D/A filed by the Management Members, Parent and Holdco with the SEC on October 3, 2022.*

Exhibit 7.8 September 30, 2022 Right Dynamic Investments Limited (?Holdco?) Wickhams Cay II, Road Town Tortola, VG1110 British Virgin Islands Re: Equity Commitment Letter Ladies and Gentlemen: This letter agreement sets forth (a) the commitment of the undersigned (the ?Sponsor?), subject to (i) the terms and conditions contained in an Agreement and Plan of Merger, dated as of the date hereof, by a

October 3, 2022 EX-7.7

Commitment Letter, dated September 30, 2022, by Credit Suisse AG, Singapore Branch to Parent, incorporated herein by reference to Exhibit 7.7 to the Schedule 13D/A filed by the Management Members, Parent and Holdco with the SEC on October 3, 2022.*

Exhibit 7.7 COMMITMENT LETTER To: FNOF Precious Honour Limited (the "Borrower") September 30, 2022 Dear Sirs, Project Oxygen ? Up to US$40,000,000 cash bridge facility and up to US$40,000,000 term loan facility You have informed Credit Suisse AG, Singapore Branch (incorporated in Switzerland with limited liability) (the "MLABU", "us" or " we") that: (a) the Sponsor (as defined in the Term Sheet (a

October 3, 2022 EX-7.10

Limited Guarantee, dated as of September 30, 2022, by and between the Company and the Sponsor, incorporated herein by reference to Exhibit 7.10 to the Schedule 13D/A filed by the Management Members, Parent and Holdco with the SEC on October 3, 2022.*

Exhibit 7.10 LIMITED GUARANTEE This Limited Guarantee (this “Limited Guarantee”), dated as of September 30, 2022, is made by FNOF Dynamic Holdings Limited, a company incorporated under the laws of British Virgin Islands (the “Guarantor”), in favor of O2Micro International Limited, a company with limited liability incorporated under the laws of the Cayman Islands (the “Guaranteed Party”). Unless ot

October 3, 2022 EX-7.11

Interim Investors Agreement, dated September 30, 2022, by and among the Management Members, the Sponsor, Holdco, Parent and Merger Sub, incorporated herein by reference to Exhibit 7.11 to the Schedule 13D/A filed by the Management Members, Parent and Holdco with the SEC on October 3, 2022.*

Exhibit 7.11 INTERIM INVESTORS AGREEMENT This Interim Investors Agreement (the “Agreement”) is made as of September 30, 2022 by and among (i) the parties set forth in Schedule A hereto (each of them is referred to herein as a “Management Party,” and collectively, as the “Management Parties”), (ii) FNOF Dynamic Holdings Limited, a company incorporated under the laws of British Virgin Islands (“Spon

October 3, 2022 EX-7.5

Joint Filing Agreement dated October 3, 2022 by and among the Reporting Persons.

EX-7.5 2 exh75.htm EXHIBIT 7.5 Exhibit 7.5 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Ordinary Shares of O2Micro International Limited, including Ordinary Shares repr

October 3, 2022 EX-7.9

Support Agreement, dated as of September 30, 2022, by and among the Rollover Shareholders and Holdco, incorporated herein by reference to Exhibit 7.9 to the Schedule 13D/A filed by the Management Members, Parent and Holdco with the SEC on October 3, 2022.*

Exhibit 7.9 ROLLOVER AND SUPPORT AGREEMENT This ROLLOVER AND SUPPORT AGREEMENT (this “Agreement”) is entered into as of September 30, 2022 by and among Right Dynamic Investments Limited, a company incorporated under the laws of British Virgin Islands (“Holdco”), and the persons set forth on Schedule A hereto (each, a “Rollover Shareholder” and collectively, “Rollover Shareholders”). Capitalized te

October 3, 2022 SC 13D/A

OIIM / O2Micro International, Ltd. / Kuo Chuan-Chiung - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* O2Micro International Limited (Name of Issuer) Ordinary Shares, par value US$0.00002 per share (Title of Class of Securities) 67107W100* (CUSIP Number) Du Shyun-Dii Sterling RmB, 2Fl, Zhangjian Mansion No 289, Chun Xiao Rd, Pudong New Area Shanghai Free

September 30, 2022 EX-99.1

O2Micro Enters into Definitive Agreement for “Going Private” Transaction

Exhibit 99.1 O2Micro Enters into Definitive Agreement for ?Going Private? Transaction GEORGE TOWN, Grand Cayman, September 30, 2022 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (?O2Micro? or the ?Company?), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that it has entered into

September 30, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 Commission File Number: 000-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB

September 30, 2022 EX-99.2

AGREEMENT AND PLAN OF MERGER FNOF PRECIOUS HONOUR LIMITED, RIM PEAK TECHNOLOGY LIMITED O2MICRO INTERNATIONAL LIMITED Dated as of September 30, 2022 TABLE OF CONTENTS

Exhibit 99.2 Execution Version AGREEMENT AND PLAN OF MERGER among FNOF PRECIOUS HONOUR LIMITED, RIM PEAK TECHNOLOGY LIMITED and O2MICRO INTERNATIONAL LIMITED Dated as of September 30, 2022 TABLE OF CONTENTS Page Article I THE MERGER 2 Section 1.01 The Merger 2 Section 1.02 Closing; Closing Date 2 Section 1.03 Effective Time 2 Section 1.04 Effects of the Merger 2 Section 1.05 Governing Documents 3

September 20, 2022 SC 13D/A

OIIM / O2Micro International, Ltd. / Kuo Chuan-Chiung - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* O2Micro International Limited (Name of Issuer) Ordinary Shares, par value US$0.00002 per share (Title of Class of Securities) 67107W100* (CUSIP Number) Du Shyun-Dii Sterling RmB, 2Fl, Zhangjian Mansion No 289, Chun Xiao Rd, Pudong New Area Shanghai Free

September 20, 2022 EX-7.4

Proposal Letter to the board of directors of O2Micro International Limited, dated September 19, 2022, from Mr. Du Shyun-Dii Sterling, Mr. Kuo Chuan-Chiung and FNOF Precious Honour Limited.

Exhibit 7.4 September 19, 2022 The Board of Directors O2Micro International Limited Grand Pavilion Commercial Centre West Bay Road, P.O. Box 32331 SMB George Town, Grand Cayman Dear Members of the Board of Directors: Reference is made to the preliminary non-binding proposal dated March 14, 2022 from FNOF PRECIOUS HONOUR LIMITED (together with its affiliated investment entities, ?Forebright?), as a

September 19, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 Commission File Number: 000-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB

September 19, 2022 EX-99.1

O2Micro Announces Receipt of a Revised Preliminary Non-Binding Proposal to Acquire the Company

EXHIBIT 99.1 O2Micro Announces Receipt of a Revised Preliminary Non-Binding Proposal to Acquire the Company GEORGE TOWN, Grand Cayman, Sept. 19, 2022 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (?O2Micro? or the ?Company?), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that it

August 1, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

August 1, 2022 EX-99.1

O2Micro Reports Second Quarter 2022 Financial Results

EXHIBIT 99.1 O2Micro Reports Second Quarter 2022 Financial Results GEORGE TOWN, Grand Cayman, July 29, 2022 (GLOBE NEWSWIRE) - Operational Highlights: 2022 Q2 revenue was $22.1 million. Revenue increased 2% compared to prior quarter. O2Micro expects the third quarter 2022 revenue to be in the range of $17.0 million to $19.0 million. O2Micro? International Limited (NASDAQ: OIIM)(O2Micro), a global

July 13, 2022 EX-99.1

O2Micro to Announce Second Quarter 2022 Results on July 29, 2022

EXHIBIT 99.1 O2Micro to Announce Second Quarter 2022 Results on July 29, 2022 GEORGE TOWN, Grand Cayman, July 12, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Second Quarter ending June 30, 2022, on Friday July 29, 202

July 13, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

June 3, 2022 EX-7.2

Consortium Agreement, dated May 20, 2022, by and between the Management Members and Parent, incorporated herein by reference to Exhibit 7.2 to the Schedule 13D filed by the Management Members with the SEC on June 3, 2022.*

Exhibit 7.2 Execution Version CONSORTIUM AGREEMENT This CONSORTIUM AGREEMENT (this ?Agreement?) is made and entered into as of May 20, 2022, by and among (a) the parties set forth in Schedule A hereto (each of them is referred to herein as a ?Management Party,? and collectively, as the ?Management Parties?) and (b) FNOF Precious Honour Limited, a company incorporated under the laws of British Virg

June 3, 2022 EX-7.3

Proposal Letter to the board of directors of O2Micro International Limited, dated May 20, 2022, from Mr. Du Shyun-Dii Sterling, Mr. Kuo Chuan-Chiung and FNOF Precious Honour Limited.

Exhibit 7.3 May 20, 2022 The Board of Directors O2Micro International Limited Grand Pavilion Commercial Centre West Bay Road, P.O. Box 32331 SMB George Town, Grand Cayman Dear Members of the Board of Directors: Reference is made to the preliminary non-binding proposal dated March 14, 2022 (the ?Original Proposal,? as amended and updated by this letter and as may be further amended from time to tim

June 3, 2022 EX-7.1

Joint Filing Agreement, dated June 3, 2022, among the Reporting Persons.

Exhibit 7.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Ordinary Shares of O2Micro International Limited, including Ordinary Shares represented by American depositary

June 3, 2022 SC 13D

OIIM / O2Micro International, Ltd. / Kuo Chuan-Chiung - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 O2Micro International Limited (Name of Issuer) Ordinary Shares, par value US$0.00002 per share (Title of Class of Securities) 67107W100* (CUSIP Number) Du Shyun-Dii Sterling RmB, 2Fl, Zhangjian Mansion No 289, Chun Xiao Rd, Pudong New Area Shanghai Free Trade Zone China 20

May 20, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geor

May 20, 2022 EX-99.1

O2Micro Announces Receipt of an Updated Preliminary Non-Binding Proposal to Acquire the Company

EXHIBIT 99.1 O2Micro Announces Receipt of an Updated Preliminary Non-Binding Proposal to Acquire the Company GEORGE TOWN, Grand Cayman, May 20, 2022 (GLOBE NEWSWIRE) - O2Micro International Limited (NASDAQ Global Select Market: OIIM) (?O2Micro? or the ?Company?), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that its

May 10, 2022 EX-99.1

O2Micro Reports First Quarter 2022 Financial Results

EX-99.1 2 exh991.htm PRESS RELEASE EXHIBIT 99.1 O2Micro Reports First Quarter 2022 Financial Results GEORGE TOWN, Grand Cayman, May 06, 2022 (GLOBE NEWSWIRE) - Operational Highlights: 2022 Q1 revenue was $21.6 million. GAAP net income was $0.03 per fully diluted ADS O2Micro expects the second quarter 2022 revenue to be in the range of $20.5 million to $22.7 million. O2Micro® International Limited

May 10, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geor

April 18, 2022 EX-1.01

EX-1.01

EX-1.01 2 exh101.htm EXHIBIT 1.01 12/30/2021 Conflict Minerals Country of Origin Worksheet QA CFS List : http://www.conflictfreesmelter.org/cfshome.htm Items maintained in QA folder : \\hc-storage-20\Local Share\QA\GP\GP Survey\2-Conflict minerals survey (CMRT)-RBA Including 1. EICC forms from all vendors on Approved Vendors List ("AVL") 2. Declaration forms from all vendors on AVL 3. Source or tr

April 18, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter) Cayman Islands 000-30910 Not applicable (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 3

April 18, 2022 EX-15.1

Consent of Deloitte & Touche, independent registered public accounting firm

EX-15.1 7 ex356121.htm EXHIBIT 15.1 Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement Nos. 333-12670, 333-12672, 333-98425, 333-101452, 333-107975, 333-116596, 333-132251, 333-153436, 333-162489 and 333-210794 on Form S-8 of our reports dated April 15, 2022, relating to the consolidated financial statements

April 18, 2022 EX-12.2

Certification of Chief Financial Officer of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act

Exhibit 12.2 CERTIFICATION I, Perry Kuo, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with resp

April 18, 2022 EX-1

Amended and Restated Memorandum and Articles of Association of the registrant adopted pursuant to a special resolution passed on May 29, 2009, which took effect upon the withdrawal of the listing of the ordinary shares of the registrant on the Main Board of The Stock Exchange of Hong Kong Limited on September 9, 2009.

EX-1 - Exhibit 1

April 18, 2022 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F (Mark One) ? Registration statement pursuant to Section 12(b) or 12(g) of the Securities Exchange Act of 1934 or ? Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 or ? Transition report pursuant to Section 13 or 15(d) of the Securities Exc

April 18, 2022 EX-13

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act

Exhibit 13 O2Micro International Limited CERTIFICATION In connection with the Annual Report of O2Micro International Limited (the ?Company?) on Form 20-F for the period ended December 31, 2020 as filed with the Securities and Exchange Commission (the ?Report?), each of Sterling Du, Chief Executive Officer of the Company, and Perry Kuo, Chief Financial Officer of the Company, hereby certify as of the date hereof, solely for purposes of Title 18, Chapter 63, Section 1350 of the United States Code, that to the best of his knowledge: 1.

April 18, 2022 EX-12.1

Certification of Chief Executive Officer of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act

Exhibit 12.1 CERTIFICATION I, Sterling Du, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with re

April 12, 2022 EX-99.1

O2Micro to Announce First Quarter 2022 Results on May 6, 2022

EXHIBIT 99.1 O2Micro to Announce First Quarter 2022 Results on May 6, 2022 GEORGE TOWN, Grand Cayman, April 08, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the First Quarter ending March 31, 2022, on Friday, May 6, 2022.

April 12, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2022 Commission File Number: 000-3091

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

March 25, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission File Number: 000-3091

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

March 25, 2022 EX-99.1

O2Micro Announces Engagement of Independent Financial Advisor and Legal Counsel to the Special Committee

EXHIBIT 99.1 O2Micro Announces Engagement of Independent Financial Advisor and Legal Counsel to the Special Committee GEORGE TOWN, Grand Cayman, March 25, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM) (?O2Micro? or the ?Company?), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announ

March 18, 2022 EX-99.1

O2Micro Announces Receipt of a Preliminary Non-Binding Proposal to Acquire the Company

EXHIBIT 99.1 O2Micro Announces Receipt of a Preliminary Non-Binding Proposal to Acquire the Company GEORGE TOWN, Grand Cayman, March 18, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM) (?O2Micro? or the ?Company?), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that its board

March 18, 2022 EX-99.2

Exhibit 99.2. Exhibit A

EXHIBIT 99.2

March 18, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission File Number: 000-3091

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

February 14, 2022 EX-99.1

Patent Granted to O2Micro for System and Methods for Driving a Battery Pack

EXHIBIT 99.1 Patent Granted to O2Micro for System and Methods for Driving a Battery Pack GEORGE TOWN, Grand Cayman, Feb. 11, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent issued to O2Micro for system and

February 14, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number: 000-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

February 11, 2022 SC 13G/A

OIIM / O2Micro International, Ltd. / Grandeur Peak Global Advisors, LLC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 a52578042.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) January 31, 2022 (Date of Event which Requires Filing of this Statement) Check the a

February 9, 2022 SC 13G/A

OIIM / O2Micro International, Ltd. / DnB Asset Management AS - SC 13G/A Passive Investment

SC 13G/A 1 d278867dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 7) O2Micro International Limited (Name of Issuer) American Depositary Shares* (Title of Class of Securities) 67107W 10 0** (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check t

January 26, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 000-30

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

January 26, 2022 EX-99.1

O2Micro Reports Fourth Quarter 2021 Financial Results

EX-99.1 2 exh991.htm PRESS RELEASE EXHIBIT 99.1 O2Micro Reports Fourth Quarter 2021 Financial Results GEORGE TOWN, Grand Cayman, Jan. 26, 2022 (GLOBE NEWSWIRE) - Operational Highlights: 2021 Q4 revenue was $24.4 million. Revenue increased 4.9% compared to the same quarter in 2020. GAAP net income was $0.09 per fully diluted ADS, down from $0.14 per fully diluted ADS, for the same quarter a year ag

January 20, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 000-30

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

January 20, 2022 SC 13G/A

OIIM / O2Micro International, Ltd. / HIRSCHMAN ORIN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 1 Under the Securities Exchange Act of 1934 O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

January 20, 2022 EX-99.1

Patent Granted to O2Micro for System and Method for Driving Light Source

EXHIBIT 99.1 Patent Granted to O2Micro for System and Method for Driving Light Source GEORGE TOWN, Grand Cayman, Jan. 20, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the patent grant of a key system and method for driving a

January 5, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 000-30

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

January 5, 2022 EX-99.1

O2Micro to Announce Fourth Quarter 2021 Results and Revises Fourth Quarter 2021 Financial Guidance

EXHIBIT 99.1 O2Micro to Announce Fourth Quarter 2021 Results and Revises Fourth Quarter 2021 Financial Guidance GEORGE TOWN, Cayman Islands, Jan. 04, 2022 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Fourth Quarter ending D

December 16, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2021 Commission File Number: 000-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

December 16, 2021 EX-99.1

O2Micro Granted Patent for System and Method for Light Source and Controllers

EXHIBIT 99.1 O2Micro Granted Patent for System and Method for Light Source and Controllers GEORGE TOWN, Cayman Islands, Dec. 16, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the patent grant of light-source systems and contro

December 10, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2021 Commission File Number: 000-3

6-K 1 f6k120921.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

December 10, 2021 EX-99.1

Patent Granted to O2Micro For Battery Protection System

EXHIBIT 99.1 Patent Granted to O2Micro For Battery Protection System GEORGE TOWN, Grand Cayman, Dec. 09, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent granted to O2Micro for a battery protection system. O

October 29, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 000-30

6-K 1 f6k102921.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

October 29, 2021 EX-99.1

O2Micro Reports Third Quarter 2021 Financial Results

EXHIBIT 99.1 O2Micro Reports Third Quarter 2021 Financial Results GEORGE TOWN, Grand Cayman, Oct. 29, 2021 (GLOBE NEWSWIRE) - Operational Highlights: 2021 Q3 revenue was $27.3 million. Revenue increased 22.6% compared to the same quarter in 2020. GAAP net income was $0.12 per fully diluted ADS, up from $0.10 per fully diluted ADS, for the same quarter a year ago. O2Micro expects the fourth quarter

October 8, 2021 EX-99.1

O2Micro to Announce Third Quarter 2021 Results

EXHIBIT 99.1 O2Micro to Announce Third Quarter 2021 Results GEORGE TOWN, Grand Cayman, Oct. 08, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Third Quarter ending September 30, 2021, on Friday, October 29th, 2021. The p

October 8, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 000-30

6-K 1 f6k100721.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

September 30, 2021 SC 13G

OIIM / O2Micro International, Ltd. / HIRSCHMAN ORIN - ACQUISITION OF BENEFICIAL OWNERSHIP Passive Investment

SC 13G 1 oiim-sc13g092021.htm ACQUISITION OF BENEFICIAL OWNERSHIP SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100 (CUSIP Number) September 20, 2021 (Date of Event Which Requires Filing of this Statement) Check the approp

August 19, 2021 EX-99.1

Patent granted to O2Micro for Dual Input Power Management Method and System

EXHIBIT 99.1 Patent granted to O2Micro for Dual Input Power Management Method and System GEORGE TOWN, Grand Cayman, Aug. 18, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent issued to O2Micro for dual input

August 19, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number: 000-309

6-K 1 f6k081921.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West B

August 3, 2021 EX-99.1

O2Micro Reports Second Quarter 2021 Financial Results

EXHIBIT 99.1 O2Micro Reports Second Quarter 2021 Financial Results GEORGE TOWN, Grand Cayman, July 30, 2021 (GLOBE NEWSWIRE) - Operational Highlights: 2021 Q2 revenue was $26.2 million. Revenue increased 51.6% compared to the same quarter in 2020. GAAP net income was $0.10 per fully diluted ADS, up from $0.01 per ADS, for the same quarter a year ago. O2Micro expects the third quarter 2021 revenue

August 3, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

July 15, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910

6-K 1 f6k071521.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay

July 15, 2021 EX-99.1

Patent granted to O2micro for auto-detecting battery cells disconnection with RC analysis methodology to enhance battery pack safety

EXHIBIT 99.1 Patent granted to O2micro for auto-detecting battery cells disconnection with RC analysis methodology to enhance battery pack safety GEORGE TOWN, Grand Cayman, July 14, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announce

July 12, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910

6-K 1 f6k070921.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay

July 12, 2021 EX-99.1

O2Micro to Announce Second Quarter 2021 Results

EXHIBIT 99.1 O2Micro to Announce Second Quarter 2021 Results GEORGE TOWN, Grand Cayman, July 09, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Second Quarter ending June 30, 2021, on Friday, July 30, 2021. The press rel

July 7, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910

6-K 1 f6k070721.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay

July 7, 2021 EX-99.2

O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON WEDNESDAY, JULY 28, 2021

Exhibit 99.2 June 25, 2021 O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON WEDNESDAY, JULY 28, 2021 To the Shareholders of O2Micro International Limited: You are cordially invited to attend the Annual General Meeting of Shareholders of O2Micro International Limited (the ?Company?) on Wednesday

July 7, 2021 EX-99.1

cORPORATE INFORMATION

Exhibit 99.1 CONTENTS CORPORATE INFORMATION 1 CHAIRMAN?S STATEMENT 2 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 6 FINANCIAL HIGHLIGHTS 8 cORPORATE INFORMATION Independent Auditor Deloitte & Touche Legal counsel Morrison & Foerster LLP Palo Alto office 755 Page Mill Road Palo Alto, California 94304 USA Maples and Calder (Cayman) LLP P.O. Box 309 Ugland House Grand Cayman KY1-1104 Cayma

June 24, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

June 24, 2021 EX-99.1

Patent Granted to O2Micro for “Controller for controlling light source module” for LED and mini-LED applications

EXHIBIT 99.1 Patent Granted to O2Micro for ?Controller for controlling light source module? for LED and mini-LED applications GEORGE TOWN, Grand Cayman, June 22, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the patent grant o

June 8, 2021 EX-99.1

O2Micro to Present at Stifel 2021 Virtual Cross Sector Insight Conference

EXHIBIT 99.1 O2Micro to Present at Stifel 2021 Virtual Cross Sector Insight Conference GEORGE TOWN, Grand Cayman, June 08, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, announced that the company will participate in the Stifel 2021 Virtual Cr

June 8, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 000-30910

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

May 18, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter) Cayman Islands 000-30910 Not applicable (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 3

May 18, 2021 EX-1.01

EX-1.01

12/09/2020 Conflict Minerals Country of Origin Worksheet QA CFS List : http://www.

May 17, 2021 EX-15.1

Consent of Deloitte & Touche, independent registered public accounting firm

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement Nos. 333-12670, 333-12672, 333-98425, 333-101452, 333-107975, 333-116596, 333-132251, 333-153436, 333-162489 and 333-210794 on Form S-8 of our report dated May 17, 2021, relating to the consolidated financial statements of O2Micro International Limited appear

May 17, 2021 EX-12.1

Certification of Chief Executive Officer of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act

Exhibit 12.1 CERTIFICATION I, Sterling Du, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with re

May 17, 2021 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F (Mark One) [ ] Registration statement pursuant to Section 12(b) or 12(g) of the Securities Exchange Act of 1934 or [x] Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020 or [ ] Transition report pursuant to Section 13 or 15(d) of the Securiti

May 17, 2021 EX-12.2

Certification of Chief Financial Officer of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act

Exhibit 12.2 CERTIFICATION I, Perry Kuo, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with resp

May 17, 2021 EX-13

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act

Exhibit 13 O2Micro International Limited CERTIFICATION In connection with the Annual Report of O2Micro International Limited (the ?Company?) on Form 20-F for the period ended December 31, 2020 as filed with the Securities and Exchange Commission (the ?Report?), each of Sterling Du, Chief Executive Officer of the Company, and Perry Kuo, Chief Financial Officer of the Company, hereby certify as of t

May 10, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

May 10, 2021 EX-99.1

O2Micro Reports First Quarter 2021 Financial Results

EXHIBIT 99.1 O2Micro Reports First Quarter 2021 Financial Results GEORGE TOWN, Grand Cayman, April 30, 2021 (GLOBE NEWSWIRE) - Operational Highlights: 2021 Q1 revenue was $23.2 million, and within the guidance provided on February 5th, 2021. Revenue increased 49.1% compared to the same quarter in 2020. GAAP net income was $0.08 per fully diluted ADS, up from $(0.06) per ADS, for the same quarter a

April 30, 2021 NT 20-F

- NT 20-F

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0058 Washington, D.

April 8, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

April 8, 2021 EX-99.1

O2Micro to Announce First Quarter 2021 Results

EXHIBIT 99.1 O2Micro to Announce First Quarter 2021 Results GEORGE TOWN, Grand Cayman, April 07, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the First Quarter ending March 31st, 2021, on April 30th, 2021 The press release

February 26, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

February 26, 2021 EX-99.1

Patent Granted to O2Micro for System and Method for Driving Light Source

EXHIBIT 99.1 Patent Granted to O2Micro for System and Method for Driving Light Source GEORGE TOWN, Grand Cayman, Feb. 25, 2021 (GLOBE NEWSWIRE) - O2Micro? International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the patent grant of a key system and method for driving a

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 6) O2Micro International Limited. (Name of Issuer) American Depositary Shares* (Title of Class of Securities

SC 13G/A 1 d35181dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 6) O2Micro International Limited. (Name of Issuer) American Depositary Shares* (Title of Class of Securities) 67107W 10 0** (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check t

February 9, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k020921.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

February 9, 2021 EX-99.1

O2Micro Reports Fourth Quarter 2020 Financial Results

EX-99.1 2 exh991.htm PRESS RELEASE EXHIBIT 99.1 O2Micro Reports Fourth Quarter 2020 Financial Results GEORGE TOWN, Grand Cayman, Feb. 05, 2021 (GLOBE NEWSWIRE) - Operational Highlights: 2020 Q4 revenue was $23.2 million, and within the guidance provided on October 30th, 2020. Revenue increased 30% compared to the same quarter in 2019. GAAP net income was $0.14 per fully diluted ADS, up from $0.07

January 13, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k011321.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

January 13, 2021 EX-99.1

O2Micro to Announce Fourth Quarter 2020 Results

EXHIBIT 99.1 O2Micro to Announce Fourth Quarter 2020 Results GEORGE TOWN, Grand Cayman, Jan. 12, 2021 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Fourth Quarter ending December 31st, 2020, on February 5th, 2021. The press

January 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pu

January 11, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k011021.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2021 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

January 11, 2021 EX-99.1

O2Micro to Present at the 23rd Needham Growth Conference

EXHIBIT 99.1 O2Micro to Present at the 23rd Needham Growth Conference GEORGE TOWN, Grand Cayman, Jan. 05, 2021 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, announced that the company will participate in the 23rd Needham Virtual Growth Conference

December 17, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

December 17, 2020 EX-99.1

Patent Granted to O₂Micro for System and Method for Controlling Battery Current

EXHIBIT 99.1 Patent Granted to O₂Micro for System and Method for Controlling Battery Current GEORGE TOWN, Grand Cayman, Dec. 14, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent for a system and method for c

November 6, 2020 SC 13G

OIIM / O2Micro International, Ltd. / HIRSCHMAN ORIN - SCHEDULE 13G Passive Investment

SC 13G 1 o2micro-sc13g110420.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100 (CUSIP Number) November 4, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

November 5, 2020 EX-99.1

O2Micro Reports Record Third Quarter 2020 Financial Results

EXHIBIT 99.1 O2Micro Reports Record Third Quarter 2020 Financial Results GEORGE TOWN, Grand Cayman, Oct. 30, 2020 (GLOBE NEWSWIRE) - Operational Highlights: 2020 Q3 revenue was $22.2 million and within the range of updated guidance provided on October 5, 2020. Revenue increased 39% from the same quarter in 2019. GAAP earnings were $0.10 per fully diluted ADS, up from $(0.01) per ADS, for the same

November 5, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k110520.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

October 6, 2020 EX-99.1

Patent Granted to O2Micro for Light Source Driving Circuits and Light Source Module

EXHIBIT 99.1 Patent Granted to O2Micro for Light Source Driving Circuits and Light Source Module GEORGE TOWN, Grand Cayman, Oct. 01, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent for circuits that drive l

October 6, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

October 5, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

October 5, 2020 EX-99.1

O2Micro Increases Revenue Forecast for the Third Quarter of 2020 and Schedules Announcement of Results

EXHIBIT 99.1 O2Micro Increases Revenue Forecast for the Third Quarter of 2020 and Schedules Announcement of Results GEORGE TOWN, Grand Cayman, Oct. 05, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the 2020 Q3 revenue forecast

August 28, 2020 EX-99.1

System and Method for Charge/Discharge Switch Control Circuits for Batteries Patent Granted to O2Micro

EXHIBIT 99.1 System and Method for Charge/Discharge Switch Control Circuits for Batteries Patent Granted to O2Micro GEORGE TOWN, Grand Cayman, Aug. 28, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent for a

August 28, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k082820.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West B

August 11, 2020 EX-99.1

cORPORATE INFORMATION

Exhibit 99.1 CONTENTS CORPORATE INFORMATION 1 CHAIRMAN’S STATEMENT 2 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 5 FINANCIAL HIGHLIGHTS 7 cORPORATE INFORMATION Independent Auditor Deloitte & Touche Legal counsel Morrison & Foerster LLP Palo Alto office 755 Page Mill Road Palo Alto, California 94304 USA Maples and Calder P.O. Box 309 Ugland House Grand Cayman KY1-1104 Cayman Islands Boa

August 11, 2020 EX-99.2

O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MONDAY, SEPTEMBER 9, 2020

Exhibit 99.2 August 5, 2020 O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MONDAY, SEPTEMBER 9, 2020 To the Shareholders of O2Micro International Limited: You are cordially invited to attend the Annual General Meeting of Shareholders of O2Micro International Limited (the “Company”) on Wednesda

August 11, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k081120.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West B

August 5, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k080520.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West B

August 5, 2020 EX-99.1

O2Micro Names Gregory FCA as Investor Relations Advisor

EXHIBIT 99.1 O2Micro Names Gregory FCA as Investor Relations Advisor GEORGE TOWN, Grand Cayman, Aug. 05, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced it has engaged Gregory FCA, a leading investor relations and financial comm

August 3, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k080320.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West B

August 3, 2020 EX-99.1

System and Method for Estimating a Remaining Capacity of a Battery Granted to O2Micro

EXHIBIT 99.1 System and Method for Estimating a Remaining Capacity of a Battery Granted to O2Micro GEORGE TOWN, Grand Cayman, Aug. 03, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a patent for a system and method

July 31, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

July 31, 2020 EX-99.1

O2Micro Reports Second Quarter 2020 Financial Results

EXHIBIT 99.1 O2Micro Reports Second Quarter 2020 Financial Results GEORGE TOWN, Grand Cayman, July 31, 2020 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q2 2020 revenue was 17.3 Million, up 21.1% from the same quarter in the previous year and up 10.9% sequentially and within the range of guidance provided on May 8th, 2020. GAAP net income per fully diluted ADS in the second quarter of

July 10, 2020 EX-99.1

O2Micro to Announce Second Quarter 2020 Results

EXHIBIT 99.1 O2Micro to Announce Second Quarter 2020 Results GEORGE TOWN, Grand Cayman, July 10, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Second Quarter ending June 30th, 2020, on Friday, July 31, 2020. The press r

July 10, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

July 7, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

July 7, 2020 EX-99.1

System and Method for Driving Light Source Patent Granted to O2Micro

EXHIBIT 99.1 System and Method for Driving Light Source Patent Granted to O2Micro GEORGE TOWN, Grand Cayman, July 06, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a key system and method for driving light source

May 21, 2020 SD

- FORM SD

SD 1 sd051920.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter) Cayman Islands 000-30910 Not applicable (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) Grand Pavilion Commercial Centre

May 21, 2020 EX-1.01

EX-1.01

1 O2 ROCI Flow : 2 O2AVL : http://doc-control.o2micro.com/ 12/31/2019 Conflict Minerals Country of Origin Worksheet QA CFS List : http://www.conflictfreesmelter.org/cfshome.htm Items maintained in QA folder : \\hc-storage-01\hc-qc\QA - Team\RoHS\GP system survey\Conflict minerals survey (EICC)-RBA Including 1. EICC forms from all vendors on Approved Vendors List ("AVL") 2. Declaration forms from a

May 11, 2020 EX-99.1

O2Micro Reports First Quarter 2020 Financial Results

EXHIBIT 99.1 O2Micro Reports First Quarter 2020 Financial Results GEORGE TOWN, Grand Cayman, May 08, 2020 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q1 2020 revenue was 15.6 Million, up 22.1% from the same quarter in the previous year and down 12.8% sequentially and within the range of guidance provided on February 6th, 2020. GAAP net loss per fully diluted ADS in the first quarter o

May 11, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geor

April 30, 2020 EX-13

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act

Exhibit 13 O2Micro International Limited CERTIFICATION In connection with the Annual Report of O2Micro International Limited (the “Company”) on Form 20-F for the period ended December 31, 2019, as filed with the Securities and Exchange Commission (the “Report”), each of Sterling Du, Chief Executive Officer of the Company, and Perry Kuo, Chief Financial Officer of the Company, hereby certify as of

April 30, 2020 EX-12.1

Certification of Chief Executive Officer of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act

Exhibit 12.1 CERTIFICATION I, Sterling Du, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with re

April 30, 2020 EX-15.1

Consent of Deloitte & Touche, independent registered public accounting firm

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement Nos. 333-12670, 333-12672, 333-98425, 333-101452, 333-107975, 333-116596, 333-132251, 333-153436, 333-162489 and 333-210794 on Form S-8 of our reports dated April 29, 2020, relating to the consolidated financial statements of O2Micro International Limited and

April 30, 2020 EX-12.2

Certification of Chief Financial Officer of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act

Exhibit 12.2 CERTIFICATION I, Perry Kuo, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with resp

April 30, 2020 20-F

- FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F (Mark One) [ ] Registration statement pursuant to Section 12(b) or 12(g) of the Securities Exchange Act of 1934 or [x] Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2019 or [ ] Transition report pursuant to Section 13 or 15(d) of the Securiti

April 23, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

April 23, 2020 EX-99.1

O2Micro to Announce First Quarter 2020 Results

EXHIBIT 99.1 O2Micro to Announce First Quarter 2020 Results GEORGE TOWN, Grand Cayman, April 17, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the First Quarter ending March 31st 2020, on Friday May 8th 2020. The press rele

February 19, 2020 SC 13G/A

OIIM / O2Micro International, Ltd. / Grandeur Peak Global Advisors, LLC - GRANDEUR PEAK GLOBAL ADVISORS, LLC SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) December 31, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pu

February 10, 2020 EX-99.1

O2Micro Reports Fourth Quarter 2019 Financial Results

EXHIBIT 99.1 O2Micro Reports Fourth Quarter 2019 Financial Results GEORGE TOWN, Grand Cayman, Feb. 06, 2020 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q4 2019 revenue was up 7.7% from the same quarter in the previous year and up 11.4% sequentially and within the range of guidance provided on December 2nd, 2019. GAAP net income per fully diluted ADS in the fourth quarter of 2019 was 7

February 10, 2020 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k021020.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

January 23, 2020 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

6-K 1 f6k012320.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2020 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West

January 23, 2020 EX-99.1

O2Micro to Announce Fourth Quarter 2019 Results

EXHIBIT 99.1 O2Micro to Announce Fourth Quarter 2019 Results GEORGE TOWN, Grand Cayman, Jan. 22, 2020 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Fourth Quarter ending December 31st 2019, on Thursday, February 6th, 2020. T

January 16, 2020 SC 13G/A

OIIM / O2Micro International, Ltd. / DnB Asset Management AS - SC 13G/A Passive Investment

SC 13G/A 1 d871594dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 5) O2Micro International Limited (Name of Issuer) American Depositary Shares* (Title of Class of Securities) 67107W 10 0** (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check t

December 3, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

December 3, 2019 EX-99.1

O2Micro Announced Increased Revenue Forecast for Q4 2019

EXHIBIT 99.1 O2Micro Announced Increased Revenue Forecast for Q4 2019 GEORGE TOWN, Grand Cayman, Dec. 02, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today increased the Q4 2019 revenue forecast to be in the mid to high $17 Million range. A

November 13, 2019 EX-99.1

O2Micro to Announce Third Quarter 2019 Results

EXHIBIT 99.1 O2Micro to Announce Third Quarter 2019 Results GEORGE TOWN, Grand Cayman, Oct. 16, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Third Quarter ending September 30th, 2019, on Friday, November 1st, 2019. The

November 13, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

November 1, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

November 1, 2019 EX-99.1

O2Micro Reports Positive Third Quarter 2019 Financial Results

EXHIBIT 99.1 O2Micro Reports Positive Third Quarter 2019 Financial Results GEORGE TOWN, Grand Cayman, Nov. 01, 2019 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q3 2019 sequential quarterly revenue was up 12.3% at the high end of guidance provided on August 2nd, 2019 GAAP net loss per fully diluted ADS in the third quarter of 2019 was 1 cent, with non-GAAP net loss of 2 cents per fully

October 31, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

October 31, 2019 EX-99.1

O2Micro announces agreement with Feit Electric

EX-99.1 2 exh991.htm PRESS RELEASE EXHIBIT 99.1 O2Micro announces agreement with Feit Electric GEORGE TOWN, Grand Cayman, Oct. 30, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that O2Micro has entered into a strategic agreeme

August 5, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, G

August 5, 2019 EX-99.1

O2Micro Reports Second Quarter 2019 Financial Results

EXHIBIT 99.1 O2Micro Reports Second Quarter 2019 Financial Results GEORGE TOWN, Grand Cayman, Aug. 02, 2019 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q2 2019 sequential quarterly revenue was up 11.8% exceeding guidance provided on March 29, 2019 GAAP net loss per fully diluted ADS in the second quarter of 2019 was 11 cents, with non-GAAP net loss of 8 cents per fully diluted ADS. Re

August 1, 2019 SC 13G/A

OIIM / O2Micro International, Ltd. / Grandeur Peak Global Advisors, LLC - GRANDEUR PEAK GLOBAL ADVISORS, LLC SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) December 31, 2018 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pu

July 26, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

July 26, 2019 EX-99.1

System and Method for Driving Light Source Patent Granted to O2Micro

EXHIBIT 99.1 System and Method for Driving Light Source Patent Granted to O2Micro GEORGE TOWN, Grand Cayman, July 26, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a key system and method for driving light source

July 25, 2019 EX-99.1

O2Micro to Announce Second Quarter 2019 Results

EXHIBIT 99.1 O2Micro to Announce Second Quarter 2019 Results GEORGE TOWN, Grand Cayman, July 23, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Second quarter ending June 30th, 2019, on Friday, August 2nd, 2019. The pres

July 25, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

May 24, 2019 SD/A

OIIM / O2Micro International, Ltd. SD/A - - FORM SD/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD/A (Amendment No. 1) SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter) Cayman Islands 000-30910 Not applicable (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) Grand Pavilion Commercial Centre, West

May 24, 2019 EX-1.01

Reaudit_In_

11/30/2018 Conflict Minerals Country of Origin Worksheet QA CFS List : http://www.

May 24, 2019 EX-1.01

Reaudit_In_

11/30/2018 Conflict Minerals Country of Origin Worksheet QA CFS List : http://www.

May 24, 2019 SD

OIIM / O2Micro International, Ltd. SD - - FORM SD

SD 1 fsd052219.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter) Cayman Islands 000-30910 Not applicable (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) Grand Pavilion Commercial Centr

May 23, 2019 EX-99.2

O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MONDAY, JUNE 5, 2019

Exhibit 99.2 May 7, 2019 O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MONDAY, JUNE 5, 2019 To the Shareholders of O2Micro International Limited: You are cordially invited to attend the Annual General Meeting of Shareholders of O2Micro International Limited (the “Company”) on Wednesday, June

May 23, 2019 EX-99.1

cORPORATE INFORMATION

Exhibit 99.1 CONTENTS CORPORATE INFORMATION 1 CHAIRMAN’S STATEMENT 2 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 4 FINANCIAL HIGHLIGHTS 6 cORPORATE INFORMATION Independent Auditor Deloitte & Touche Legal counsel Morrison & Foerster LLP Palo Alto office 755 Page Mill Road Palo Alto, California 94304 USA Maples and Calder P.O. Box 309 Ugland House Grand Cayman KY1-1104 Cayman Islands Boa

May 23, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K - Current Report of Foreign Issuer - FORM 6-K

oiim201605106k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2019. Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O.

May 7, 2019 EX-99.1

O2Micro Reports First Quarter 2019 Financial Results

EXHIBIT 99.1 O2Micro Reports First Quarter 2019 Financial Results GEORGE TOWN, Grand Cayman, May 01, 2019 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q1 2019 revenue was down 9.5 % from the same quarter in the previous year and down 23.0% sequentially and within the range of adjusted guidance provided on March 29, 2019. As announced, this adjustment was primarily the result of an inve

May 7, 2019 6-K

OIIM / O2Micro International, Ltd. 6-K Current Report of Foreign Issuer FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geor

April 30, 2019 EX-13

O2Micro International Limited

Exhibit 13 O2Micro International Limited CERTIFICATION In connection with the Annual Report of O2Micro International Limited (the “Company”) on Form 20-F for the period ended December 31, 2018, as filed with the Securities and Exchange Commission (the “Report”), each of Sterling Du, Chief Executive Officer of the Company, and Perry Kuo, Chief Financial Officer of the Company, hereby certify as of

April 30, 2019 20-F

OIIM / O2Micro International, Ltd. 20-F FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F (Mark One) [ ] Registration statement pursuant to Section 12(b) or 12(g) of the Securities Exchange Act of 1934 or [x] Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2018 or [ ] Transition report pursuant to Section 13 or 15(d) of the Securiti

April 30, 2019 EX-12.2

CERTIFICATION

Exhibit 12.2 CERTIFICATION I, Perry Kuo, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with resp

April 30, 2019 EX-12.1

CERTIFICATION

Exhibit 12.1 CERTIFICATION I, Sterling Du, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with re

April 30, 2019 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement Nos. 333-12670, 333-12672, 333-98425, 333-101452, 333-107975, 333-116596, 333-132251, 333-153436, 333-162489 and 333-210794 on Form S-8 of our reports dated April 29, 2019, relating to the consolidated financial statements of O2Micro International Limited and

April 18, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

April 18, 2019 EX-99.1

O2Micro to Announce First Quarter 2019 Results

EXHIBIT 99.1 O2Micro to Announce First Quarter 2019 Results GEORGE TOWN, Grand Cayman, April 18, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the First quarter ending March 31st, 2019, on Wednesday, May 1st, 2019. The pres

April 2, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

April 2, 2019 EX-99.1

O2Micro Revises First Quarter 2019 Financial Guidance

EXHIBIT 99.1 O2Micro Revises First Quarter 2019 Financial Guidance GEORGE TOWN, Grand Cayman, March 29, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today revised its guidance for the first quarter of 2019. The company now expects its first quarter revenue to be

March 7, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

March 7, 2019 EX-99.1

Key Battery Pack Protection Patent Granted to O2Micro

EXHIBIT 99.1 Key Battery Pack Protection Patent Granted to O2Micro GEORGE TOWN, Grand Cayman, March 06, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a key Battery Pack Protection patent. O2Micro was issued 20 cla

February 22, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

February 22, 2019 EX-99.1

Key Battery Pack Protection Patent Granted to O2Micro

EXHIBIT 99.1 Key Battery Pack Protection Patent Granted to O2Micro GEORGE TOWN, Grand Cayman, Feb. 20, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a key Battery Pack Protection patent. O2Micro was issued 20 clai

February 8, 2019 EX-99.1

Key Battery Pack Protection Patent Granted to O2Micro

EXHIBIT 99.1 Key Battery Pack Protection Patent Granted to O2Micro GEORGE TOWN, Grand Cayman, Feb. 07, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited (NASDAQ Global Select Market: OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a key Battery Pack Protection patent. O2Micro was issued 20 clai

February 8, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

January 30, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

January 30, 2019 EX-99.1

O2Micro Reports Fourth Quarter 2018 Financial Results

EXHIBIT 99.1 O2Micro Reports Fourth Quarter 2018 Financial Results GEORGE TOWN, Grand Cayman, Jan. 30, 2019 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q4 2018 revenue was up 9.0% from the same quarter in the previous year and down 1.4% sequentially and within the range of guidance provided on October 31, 2018. GAAP net loss per fully diluted ADS in the fourth quarter of 2018 was 12

January 22, 2019 EX-99.1

O2Micro to Announce Fourth Quarter 2018 Results

EXHIBIT 99.1 O2Micro to Announce Fourth Quarter 2018 Results GEORGE TOWN, Grand Cayman, Jan. 17, 2019 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Fourth quarter ending December 31st, 2018, on Wednesday, January 30th , 2019

January 22, 2019 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2019 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

November 1, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2018 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

November 1, 2018 EX-99.1

O2Micro Reports Third Quarter 2018 Financial Results

EXHIBIT 99.1 O2Micro Reports Third Quarter 2018 Financial Results GEORGE TOWN, Grand Cayman, Oct. 31, 2018 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q3 2018 Revenue was up 10.6% sequentially and within the range of guidance provided on August 1, 2018. GAAP net loss per fully diluted ADS in the third quarter of 2018 was 13 cents, with non-GAAP net loss of 5 cents per fully diluted AD

October 10, 2018 EX-99.1

O2Micro to Announce Third Quarter 2018 Results

EXHIBIT 99.1 O2Micro to Announce Third Quarter 2018 Results GEORGE TOWN, Grand Cayman, Oct. 10, 2018 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Third quarter ending September 30th, 2018, on Wednesday, October 31st, 2018.

October 10, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2018 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB,

August 3, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2018 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, G

August 3, 2018 EX-99.1

O2Micro Reports Second Quarter 2018 Financial Results

EXHIBIT 99.1 O2Micro Reports Second Quarter 2018 Financial Results GEORGE TOWN, Grand Cayman, Aug. 01, 2018 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q2 2018 results were within the range of guidance provided in May 2018. GAAP net income per fully diluted ADS in the second quarter of 2018 was 6 cents, with non-GAAP net loss of 5 cents per fully diluted ADS. Revenue growth in the thi

July 17, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2018 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geo

July 17, 2018 EX-99.1

O2Micro to Announce Second Quarter 2018 Results

EXHIBIT 99.1 O2Micro to Announce Second Quarter 2018 Results GEORGE TOWN, Grand Cayman, July 17, 2018 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the Second quarter ending June 30th, 2018, on Wednesday, August 1st , 2018. The

May 17, 2018 SD

OIIM / O2Micro International, Ltd. FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT O2 Micro International Limited (Exact name of registrant as specified in its charter) Cayman Islands 000-30910 Not applicable (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 3

May 17, 2018 EX-1.01

Full Compliant Smelter List 2017-12-29

12/29/2017 Conflict Minerals Country of Origin Worksheet QA CFS List : http://www.

May 8, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

6-K 1 f6k050718.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2018. Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay

May 8, 2018 EX-99.1

i SJ a 1 pea7 Jt11s n , p u 1 , J o j su o 11 n 1 0 s pa:,ueAp \ f IIIJ.lt/OJN 01111 afl7 llllflDa.1 fl ttJ;tl · . • ® - • . . C ON TE N TS CORPORATE INFORMATION 1 CHAIRMAN’S STATEMENT 2 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 4 FINAN

Exhibit 99.1 i SJ a 1 pea7 Jt11s n , p u 1 , J o j su o 11 n 1 0 s pa:,ueAp \ f IIIJ.lt/OJN 01111 afl7 llllflDa.1 fl ttJ;tl · . • ® - • . . C ON TE N TS CORPORATE INFORMATION 1 CHAIRMAN’S STATEMENT 2 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 4 FINANCIAL HIGHLIGHTS 6 - 1 - CORPORATE INFORMATION Independent Auditor Deloitte & Touche Legal counsel Morrison & Foerster LLP Palo Alto offic

May 8, 2018 EX-99.2

O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MONDAY, JUNE 4, 2018

Exhibit 99.2 May 2, 2018 O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MONDAY, JUNE 4, 2018 To the Shareholders of O2Micro International Limited: You are cordially invited to attend the Annual General Meeting of Shareholders of O2Micro International Limited (the “Company”) on Monday, June 4,

May 3, 2018 EX-99.1

O2Micro Reports First Quarter 2018 Financial Results

EXHIBIT 99.1 O2Micro Reports First Quarter 2018 Financial Results GEORGE TOWN, Grand Cayman, May 02, 2018 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q1 2018 results were within the range of guidance provided in January 2018. GAAP net income per fully diluted ADS in the first quarter of 2018 was 27 cents, with non-GAAP net loss of 9 cents per fully diluted ADS. Revenue growth in the s

May 3, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2018 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Geor

April 19, 2018 EX-13

O2Micro International Limited

Exhibit 13 O2Micro International Limited CERTIFICATION In connection with the Annual Report of O2Micro International Limited (the “Company”) on Form 20-F for the period ended December 31, 2017, as filed with the Securities and Exchange Commission (the “Report”), each of Sterling Du, Chief Executive Officer of the Company, and Perry Kuo, Chief Financial Officer of the Company, hereby certify as of

April 19, 2018 EX-12.1

CERTIFICATION

Exhibit 12.1 CERTIFICATION I, Sterling Du, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with re

April 19, 2018 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement Nos. 333-12670, 333-12672, 333-98425, 333-101452, 333-107975, 333-116596, 333-132251, 333-153436, 333-162489 and 333-210794 on Form S-8 of our reports dated April 10. 2018, relating to the consolidated financial statements of O2Micro International Limited and

April 19, 2018 20-F

OIIM / O2Micro International, Ltd. FORM 20-F

20-F 1 f20f042018p.htm FORM 20-F UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 20-F (Mark One) (Mark One) [ ] Registration statement pursuant to Section 12(b) or 12(g) of the Securities Exchange Act of 1934 or [x] Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2017 or [ ] Transition report pur

April 19, 2018 EX-12.2

CERTIFICATION

Exhibit 12.2 CERTIFICATION I, Perry Kuo, certify that: 1. I have reviewed this Annual Report on Form 20-F of O2Micro International Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with resp

April 17, 2018 EX-99.1

O2Micro to Announce First Quarter 2018 Results

EXHIBIT 99.1 O2Micro to Announce First Quarter 2018 Results GEORGE TOWN, Grand Cayman, April 17, 2018 (GLOBE NEWSWIRE) - O2Micro® International Limited, (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, will announce its financial results for the first quarter ending March 31st, 2018, on Wednesday, May 2nd , 2018. The pre

April 17, 2018 6-K

OIIM / O2Micro International, Ltd. FORM 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2018 Commission File Number: 000-30910 O2Micro International Limited (Translation of registrant's name into English) Grand Pavilion Commercial Centre, West Bay Road P.O. Box 32331 SMB, Ge

February 15, 2018 SC 13G/A

OIIM / O2Micro International, Ltd. / Grandeur Peak Global Advisors, LLC - GRANDEUR PEAK GLOBAL ADVISORS, LLC SC 13G/A Passive Investment

SC 13G/A 1 a51759148.htm GRANDEUR PEAK GLOBAL ADVISORS, LLC SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) O2Micro International Limited (Name of Issuer) American Depository Shares (Title of Class of Securities) 67107W100* (CUSIP Number) December 31, 2017 (Date of Event which Requires Filing

January 31, 2018 EX-99.1

O2Micro Reports Fourth Quarter and Yearly 2017 Financial Results

EdgarFiling EXHIBIT 99.1 O2Micro Reports Fourth Quarter and Yearly 2017 Financial Results GEORGE TOWN, Grand Cayman, Jan. 31, 2018 (GLOBE NEWSWIRE) - Operational and Strategic Highlights: Q4 2017 results were within the range of guidance provided in November 2017. Fiscal 2017 revenue increased 6.4% over fiscal 2016. GAAP net loss per ADS in the fourth quarter of 2017 was 7 cents, with non-GAAP net

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