Major Information

1.Date of the board of directors resolution:2025/07/03 2.Source of capital increase funds:Capital increase through issuance of new shares 3.Whether to adopt shelf registration (Yes, please state issuance period/No): No. 4.Total monetary value of the issuance and number of shares issued (shares issued not including those distributed to employees if consisting in capital increase from earnings or capital surplus): (1) Total issue amount: The estimated amount to be raised is NT$800 million. (2) Number of shares to be issued: 20,000,000 new common shares. 5.If adopting shelf registration, monetary value and number of shares to be issued this time:N/A 6.The remaining monetary value and shares after this issuance when adopting shelf registration:N/A 7.Par value per share:NT$10 8.Issue price:Tentative issue price: NT$40 per share. 9.Number of shares subscribed for by or allocated to employees: In accordance with Article 267 of the Company Act, 10% of the new shares (i.e., 2,000,000 shares) will be reserved for subscription by the employees of the Company. 10.Number of shares publicly sold: In accordance with Article 28-1 of the Securities and Exchange Act, 10% of the new shares (i.e., 2,000,000 shares) will be publicly offered. 11.Ratio of shares subscribed by or allotted as stock dividends to existing shareholders:…

1.Date of the resolution by the board of directors or shareholders meeting or decision by the Company:2025/07/03 2.Type of ex-rights or ex-dividend (please enter: “Ex-rights”, ”Ex-dividend”, or ”Ex-rights and dividend”):Ex-dividend 3.Type and monetary amount of common stock dividend distribution: The cash dividend distributed to shareholders totaled NT$227,675,637 at NT$1.4 per share. 4.Ex-rights (ex-dividend) trading date:2024/07/30 5.Last date before book closure:2024/07/31 6.Book closure starting date:2025/08/01 7.Book closure ending date:2025/08/05 8.Ex-rights (ex-dividend) record date:2025/08/05 9.Deadline for applying the conversion of the bond:2025/07/09 10.The closure period for the conversion of the bond will start from the date:2025/07/11 11.The closure period for the conversion of the bond will end on the date:2025/08/05 12.Payment date of common stock cash dividend distribution:2025/08/19 13.Any other matters that need to be specified:None.

1.Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.) ,financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives): Financial officer, accounting officer, corporate governance officer 2.Date of occurrence of the change:2025/07/03 3.Name, title, and resume of the previous position holder: Financial officer: Jason Lin/ Vice President of G.M.I Technology Inc. Accounting officer: Jason Lin/ Vice President of G.M.I Technology Inc. Corporate governace officer: Jason Lin/ Vice President of G.M.I Technology Inc. 4.Name, title, and resume of the new position holder: Financial officer: Sam Chen/ Senior Assistant Vice President of G.M.I Technology Inc. Accounting officer: Sam Chen/ Senior Assistant Vice President of G.M.I Technology Inc. Corporate governace officer: Sam Chen/ Senior Assistant Vice President of G.M.I Technology Inc. 5.Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”, ”death”,”new replacement” or ”dismissal”):Retirement 6.Reason for the change:Retirement 7.Effective date:2025/07/03 8.Any other matters that need to be specified:None

1.Date of occurrence of the change:2025/07/03 2.Name of the functional committees:Sustainable Committee 3.Name of the previous position holder: Sen Jan Yen-Hui Ko Wei-Chang Lee 4.Resume of the previous position holder: Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. 5.Name of the new position holder: Sen Jan Yen-Hui Ko Wei-Chang Lee Chung-Chie Chou 6.Resume of the new position holder: Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. Chung-Chie Chou，Independent director of GMI Technology Inc. 7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or “new appointment”):Term expired 8.Reason for the change:Term expired , re-appoint 9.Original term (from __________ to __________):2022/11/08~2025/06/22 10.Effective date of the new member:2025/07/03 11.Any other matters that need to be specified: New term from 2025/07/03 to 2028/06/24

1.Date of occurrence of the change:2025/07/03 2.Name of the functional committees:Remuneration Committee 3.Name of the previous position holder: Sen Jan Yen-Hui Ko Wei-Chang Lee 4.Resume of the previous position holder: Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. 5.Name of the new position holder: Sen Jan Yen-Hui Ko Wei-Chang Lee Chung-Chie Chou 6.Resume of the new position holder: Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. Chung-Chie Chou，Independent director of GMI Technology Inc. 7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or “new appointment”):Term expired 8.Reason for the change:Term expired , re-appoint 9.Original term (from __________ to __________):2022/06/23~2025/06/22 10.Effective date of the new member:2025/07/03 11.Any other matters that need to be specified: New term from 2025/07/03 to 2028/06/24

1.Date of the board of directors resolution or date of occurrence of the change:2025/07/03 2.Position (Please enter chairperson or president/general manager):Chairperson 3.Name of the previous position holder: Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh 4.Resume of the previous position holder: Chairman of GMI Technology Inc. 5.Name of the new position holder: Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh 6.Resume of the new position holder: Chairman of GMI Technology Inc. 7.Circumstances of change (Please enter ”resignation”, ”dismissal”, ”term expired” , ”job relocation”, ”severance”, ”retirement”, ”death” or ”new appointment”):Term expired 8.Reason for the change:Term expired and re-election of the Board of Directors. 9.Effective date of the new appointment:2025/07/03 10.Any other matters that need to be specified (the information disclosure also meets the requirements of Article 7, subparagraph 6 of the Securities and Exchange Act Enforcement Rules, which brings forth a significant impact on shareholders rights or the price of the securities on public companies.): None.

1.Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.) ,financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives): Acting spokesperson 2.Date of occurrence of the change:2025/07/03 3.Name, title, and resume of the previous position holder: Kenneth Hsieh/Assistant Vice President of G.M.I Technology Inc. 4.Name, title, and resume of the new position holder: Sam Chen/ Senior Assistant Vice President of G.M.I Technology Inc. 5.Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”, ”death”,”new replacement” or ”dismissal”):Position adjustment 6.Reason for the change:Position adjustment 7.Effective date:2025/07/03 8.Any other matters that need to be specified:None

1.Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.) ,financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives): Chief internal auditor 2.Date of occurrence of the change:2025/07/03 3.Name, title, and resume of the previous position holder: Sam Chen/ Senior Assistant Vice President of G.M.I Technology Inc. 4.Name, title, and resume of the new position holder: Jane Chen/ Manager of G.M.I Technology Inc. 5.Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”, ”death”,”new replacement” or ”dismissal”):Position adjustment 6.Reason for the change:Position adjustment 7.Effective date:2025/07/03 8.Any other matters that need to be specified:None

1.Date of occurrence of the event:2025/06/26 2.Company name:G.M.I Technology Inc. 3.Relationship with the Company (please enter ”the company itself” or ”subsidiaries”):the company itself 4.Reciprocal shareholding percentage:N/A 5.Name of the reporting media:Economic Daily News(Date：2025/06/25) 6.Content of the report:”Semiconductor distributor GMI Technology (3312) held its shareholders’ meeting on the 25th. Chairman Yeh, Chia-Wen stated [...] institutional investors estimate the company’s performance this year could reach NT$20 billion, aiming for a record high.” 7.Cause of occurrence:To clarify news reporting 8.Countermeasures:Media reports on our company’s performance growth are based on their own forecasts. For accurate financial and business information, please refer to the disclosures published on the Market Observation Post System. This statement is issued for clarification. 9.Any other matters that need to be specified:None.

1.Date of the shareholders meeting:2025/06/25 2.Important resolutions (1)Profit distribution/ deficit compensation: Passed the ratification of the Company's 2024 earnings distribution proposal. Voting results Vote for：79,366,402 Number of votes；97.05% of valid voting rights Vote against：74,527 Number of votes；0.09% of valid voting rights Invalid vote：0 Number of votes；0% of valid voting rights Abstention/Uncast vote：2,332,691 Number of votes； 2.85% of valid voting rights 3.Important resolutions (2)Amendments to the corporate charter: Passed the amendment to certain articles of the Company's “Articles of Incorporation.” Voting results Vote for：79,377,619 Number of votes；97.06% of valid voting rights Vote against：56,804 Number of votes；0.06% of valid voting rights Invalid vote：0 Number of votes；0% of valid voting rights Abstention/Uncast vote：2,340,197 Number of votes； 2.86% of valid voting rights 4.Important resolutions (3)Business report and financial statements: Passed the ratificationof the Company's 2024 financial statements. Voting results Vote for：79,369,771 Number of votes；97.06% of valid voting rights Vote against：53,290 Number of votes；0.06% of valid voting rights Invalid vote：0 Number of votes；0% of valid voting rights Abstention/Uncast vote：2,350,559 Number of votes； 2.87% of valid voting rights 5.Important resolutions (4)Elections for board of directors and supervisors: Proposal for election of Directors. List of directors elected: Directors: Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh Representative…

1.Date of occurrence of the change:2025/06/25 2.Name of the functional committees:Audit Committee 3.Name of the previous position holder: Sen Jan Yen-Hui Ko Wei-Chang Lee Chung-Chie Chou 4.Resume of the previous position holder: Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. Chung-Chie Chou，Independent director of GMI Technology Inc. 5.Name of the new position holder: Sen Jan Yen-Hui Ko Wei-Chang Lee Chung-Chie Chou 6.Resume of the new position holder: Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. Chung-Chie Chou，Independent director of GMI Technology Inc. 7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or “new appointment”): Term expired. 8.Reason for the change:Expiration of the term of the Board of Directors. 9.Original term (from __________ to __________):20220623~20250622 10.Effective date of the new member:20250625 11.Any other matters that need to be specified:None.

1.Date of the shareholders meeting resolution:2025/06/25 2.Name and title of the director with permission to engage in competitive conduct: Director:Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh Director:Representative of De-Jet Investment Co., Ltd.: Yen-Hui Liu Director:Representative of De-Jet Investment Co., Ltd.: Bo-Chun Yeh Director:Representative of De-Jet Investment Co., Ltd.: Kuo-Chang Wang Independent Director: Sen Jan Independent Director: Yen-Hui Ko Independent Director: Wei-Chang Lee Independent Director: Chung-Chie Chou 3.Items of competitive conduct in which the director is permitted to engage: Director:Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh (1)Chairman of Shiteh Organic Pharmaceutical Co., Ltd. (2)Chairman of Hi-Jet Incorporation (3)Chairman of Biofity Pharmaceuticals Inc. (4)Chairman of Dejie Investment Co., Ltd. (5)Chairman of Heng Hsuan Co., Ltd. (6)Director of SmartBee Intelligence Company Ltd. (7)Chairman of Global Mobile Internet Co., Ltd. (8)Chairman of Rehear Audiology Company Ltd. (9)Chairman of Unitech Computer Co., Ltd. (10)Chairman of Unitech Electronics Co., Ltd. (11)Chairman of Jingyong Computer Co., Ltd. (12)Chairman of Jingho Computer Co., Ltd. (13)Directors (legal representatives) of Unitech Electronics Co., Ltd., for its associate companies UAV, UEV, UJH, UCV, UAH, UEH, and UIH (14)Directors of Unitech Electronics Co., Ltd., for its associate companies UTA, UTI, and UTJ (15)Chairman of Xiamen Unitech Computers Co., Ltd. (16)Director…

1.Date of occurrence of the change:2025/06/25 2.Elected or changed position (Please enter institutional director, institutional supervisor, independent director, natural-person director or natural-person supervisor):Institutional director、Independent director 3.Title and name of the previous position holder: (1)Institutional director: Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh Representative of De-Jet Investment Co., Ltd.: Li-Li Hsu Representative of De-Jet Investment Co., Ltd.: Yen-Hui Liu Representative of De-Jet Investment Co., Ltd.: Kuo-Chang Wang Representative of De-Jet Investment Co., Ltd.: Che-Sheng Shen (2)Independent director Sen Jan Yen-Hui Ko Wei-Chang Lee Chung-Chie Chou 4.Resume of the previous position holder: (1)Institutional director: Representative of De-Jet Investment Co., Ltd.: Chia-Wen Yeh Chairman of GMI Technology Inc. Representative of De-Jet Investment Co., Ltd.: Li-Li Hsu Supervisor of De-Jet Investment Co., Ltd. Representative of De-Jet Investment Co., Ltd.: Yen-Hui Liu President of GMI Technology Inc. Representative of De-Jet Investment Co., Ltd.: Kuo-Chang Wang Director of Unitech Electronics Co.,Ltd. Representative of De-Jet Investment Co., Ltd.: Che-Sheng Shen Vice President of the Investment Unit, De-Jet Investment Co., Ltd. (2)Independent director Sen Jan，Independent director of GMI Technology Inc. Yen-Hui Ko，Independent director of GMI Technology Inc. Wei-Chang Lee，Independent director of GMI Technology Inc. Chung-Chie Chou，Independent director of GMI Technology Inc. 5.Title and name of the new…

1.Date of occurrence of the event:2025/05/09 2.Date of the original announcement and reporting:2024/09/05 3.Summary of the content originally announced and reported: Original announcement of the 2024/09/05 Board resolution regarding the transaction terms for leasing 127 GPU servers to related parties Monthly service fee: US$1,105,674.50 per month (relevant taxes excluded), payable in seven working days from the invoice date. total five-year service fee: US$66,340,470 (paid in 60 installments, excluding relevant taxes) 4.Reason for change and its main content: Due to rapidly changing external economic environment, geopolitical issues, US tariff problems, and various other factors causing unpredictable market fluctuations, since July 2024, GMI COMPUTING has consistently made timely payments, provided collateral and other relevant information, and promptly assisted with the maintenance services for GPUs and data centers. In view of the close collaboration toward the goal of operating an AI computing power center, and based on equal and reasonable rights and obligations between both parties, GMI COMPUTING has proposed negotiating a change in rental transaction terms to Net 90 days. 5.Effect on the Company's finance and business after the change: This is only a minor adjustment to transaction terms and will not have a significant impact on financial reports. 6.Any other matters…

1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City): H200 servers located in the United States 2.Date of occurrence of the event:2025/05/09 3.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price: Transaction quantity: 127 units Total transaction amount: NT$1,614,880,000 4.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed): Transaction counterpart:GMI USA Corporation Relationship with the company: 100% owned subsidiary of the Company 5.Where the trading counterparty is a related party, announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, its relationship with the Company and the trading counterparty, and the previous date and monetary amount of transfer: (1)Reasons for selecting related parties as transaction counterparts: Due to tax considerations (2)Previous transferors: Super Micro Computer, Inc. (111 units) Hewlett Packard Enterprise Company (16 units) (3)Relationship between previous transferors and the company and transaction counterpart: Unrelated parties (4)Previous transfer date: March 2025…

1.Date of submission to the board of directors or approval by the board of directors:2025/05/09 2.Date of approval by the audit committee:2025/05/09 3.Start and end dates of financial reports or annual self-assessed financial information of the reporting period (XXXX/XX/XX~XXXX/XX/XX): 2025/01/01~2025/03/31 4.Operating revenue accumulated from 1/1 to end of the period (thousand NTD):5,707,162 5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD):353,479 6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD):206,461 7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD):203,432 8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD):161,011 9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period (thousand NTD):170,677 10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD):1.05 11.Total assets end of the period (thousand NTD):11,655,989 12.Total liabilities end of the period (thousand NTD):8,286,943 13.Equity attributable to owners of parent end of the period (thousand NTD):3,285,835 14.Any other matters that need to be specified:None.

1.Date of the board of directors resolution :2025/05/09 2.Year or quarter which dividends belong to:2024 3.Period which dividends belong to:2024/01/01~2024/12/31 4.Appropriations of earnings in cash dividends to shareholders (NT$ per share):1.4 5.Cash distributed from legal reserve and capital surplus to shareholders (NT$ per share):0 6.Total amount of cash distributed to shareholders (NT$):227,675,637 7.Appropriations of earnings in stock dividends to shareholders (NT$ per share):0 8.Stock distributed from legal reserve and capital surplus to shareholders (NT$ per share):0 9.Total amount of stock distributed to shareholders (shares):0 10.Any other matters that need to be specified:None 11.Par value of common stock:NT$10

1.Date of a notice of the board of directors meeting is issued:2025/04/30 2.Expected date of the board of directors meeting is convened:2025/05/09 3.Expected year and quarter of the financial reports or the annual self-assessed financial information submitted to the board of directors or approved by the board of directors:2025Q1 4.Any other matters that need to be specified:None

1.Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.) ,financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives): Spokesperson, Acting Spokesperson 2.Date of occurrence of the change:2025/04/17 3.Name, title, and resume of the previous position holder: Spokesperson:Jason Lin/Finance Division Vice President of G.M.I Technology Inc. Acting Spokesperson:none. 4.Name, title, and resume of the new position holder: Spokesperson:Ko,Deng-Chia/Senior Assistant Vice President of G.M.I Technology Inc. Acting Spokesperson:Hsieh, Chung-Chiu/Assistant Vice President of G.M.I Technology Inc. 5.Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”, ”death”,”new replacement” or ”dismissal”):position adjustment 6.Reason for the change:position adjustment 7.Effective date:2025/04/17 8.Any other matters that need to be specified:none.