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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:2026/08/11 3.Name, title, and resume of the previous position holder: CHEN,SHI-JIA/ Manager of GMI Technology Inc. 4.Name, title, and resume of the new position holder: LIN,LI-HUA/ Manager of GMI 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:2026/08/11 8.Any other matters that need to be specified:None

1.Date of occurrence of the change:2026/08/11 2.Name of the functional committees:the Risk Management Committee 3.Name of the previous position holder:NA 4.Resume of the previous position holder:NA 5.Name of the new position holder: (1)Sen Jan (2)Yen-Hui Ko (3)Wei-Chang Lee (4)Chung-Chie Chou 6.Resume of the new position holder: (1)Sen Jan: Independent director of GMI Technology Inc. (2)Yen-Hui Ko: Independent director of GMI Technology Inc. (3)Wei-Chang Lee: Independent director of GMI Technology Inc. (4)Chung-Chie Chou: Independent director of GMI Technology Inc. 7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or “new appointment”):new appointment 8.Reason for the change:The Compnay's Board of Directors resolved to establish the Risk Management Committee 9.Original term (from __________ to __________):NA 10.Effective date of the new member:2026/08/11 11.Any other matters that need to be specified:The term of the members shall be the same as the term of the current Board of Directors until the expiration date.(2026/08/11~2028/06/24)

1.Date of occurrence of the event:2026/08/11 2.Company name:GMI Technology Inc. 3.Relationship to the Company (please enter ”head office” or ”subsidiaries”):head office 4.Reciprocal shareholding ratios:NA 5.Cause of occurrence:GMI Computing International Ltd. is a long-term lessee of the Company's servers, To deepen the cooperative relationship between the two parties, the Company's Board of Directors originally approved on April 22, 2026 the provision of a one-year guarantee for GMI Computing International Ltd. As the company has no practical need to utilize the endorsement/guarantee, the endorsement/guarantee provided to the company is canceled. 6.Countermeasures:Suspend the provision of endorsements and guarantees for GMI Computing International Ltd. announced on 2026/04/22 7.Any other matters that need to be specified (the information disclosure also meets the requirements of Article 7, subparagraph 9 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.Date of occurrence of the event:2026/08/11 2.For the company for whom the endorsements/guarantees were made, please specify name of endorsed/guaranteed company, its relationship with the Company providing endorsements/guarantees, the ceiling on the endorsements/guarantees (thousand NTD), the original amount of endorsements/guarantees (thousand NTD), the amount of the current additional endorsements/guarantees (thousand NTD), the amount of endorsements/guarantees as of the date of occurrence (thousand NTD), the actual loaned amount of the company for whom endorsements/guarantees were made (thousand NTD), and the reason for the current additional endorsements/guarantees: (1)Name of endorsed/guaranteed company:GMI Technology HK Limited (2)Relationship with the Company providing endorsements/guarantees: subsidiary of GMI Technology Inc. (3)The ceiling on the endorsements/guarantees (thousand NTD)： NT$4,021,326 thousand (4)The original amount of endorsements/guarantees (thousand NTD): NT$1,421,640 thousand (5)The amount of the current additional endorsements/guarantees (thousand NTD): NT$1,292,400 thousand (6)The amount of endorsements/guarantees as of the date of occurrence (thousand NTD): NT$2,714,040 thousand (7)The actual loaned amount of the company for whom endorsements/guarantees were made (thousand NTD): NT$0 (8)The reason for the current additional endorsements/guarantees: For operational policy, the Company acts as guarantor for its subsidiary. 3.For collaterals provided by the company for whom the endorsements/guarantees were made, the content and the value (thousand NTD): NT$0 4.For…

1.Date of the resolution by the board of directors or shareholders meeting or decision by the Company:2026/08/11 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$237,414,860 at NT$1.3 per share. 4.Ex-rights (ex-dividend) trading date:2026/09/08 5.Last date before book closure:2026/09/09 6.Book closure starting date:2026/09/10 7.Book closure ending date:2026/09/14 8.Ex-rights (ex-dividend) record date:2026/09/14 9.Deadline for applying the conversion of the bond:2026/08/18 10.The closure period for the conversion of the bond will start from the date:2026/08/20 11.The closure period for the conversion of the bond will end on the date:2026/09/14 12.Payment date of common stock cash dividend distribution:2026/09/30 13.Are part or all the cash dividends paid in foreign currency (please enter: “Yes” or ”No”):No 14.Payment currency of foreign currency cash dividends:NA 15.Recipients of foreign currency cash dividends:NA 16.Method for determining the exchange rate of foreign currency cash dividends:NA 17.Any other matters that need to be specified:None

1.Date of submission to the board of directors or approval by the board of directors:2026/08/11 2.Date of approval by the audit committee:2026/08/11 3.Start and end dates of financial reports or annual self-assessed financial information of the reporting period (XXXX/XX/XX~XXXX/XX/XX): 2026/01/01-2026/06/30 4.Operating revenue accumulated from 1/1 to end of the period (thousand NTD): 12,216,684 5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD): 639,826 6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD): 343,906 7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD): 396,851 8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD): 336,461 9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period (thousand NTD): 336,461 10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD): 1.84 11.Total assets end of the period (thousand NTD): 12,917,645 12.Total liabilities end of the period (thousand NTD): 8,896,319 13.Equity attributable to owners of parent end of the period (thousand NTD): 4,021,326 14.Any other matters that need to be specified:None

1.Date of occurrence of the event:2026/08/06 2.Company name:GMI Technology HK Limited 3.Relationship with the Company (please enter ”the company itself” or ”subsidiaries”):subsidiaries 4.Reciprocal shareholding percentage:NA 5.Cause of occurrence:Correction to the Endorsements/Guarantees disclosures in May 20266. 6.Information items/ statements to be corrected: Endorsements/Guarantees disclosures in May 2026 7.Amounts/ contents/ number of page to be corrected: May 2026： Company Providing the Endorsement/Guarantee:GMI Technology HK Limited Beneficiary of the Endorsement/Guarantee:GMI USA Corporation Limit to a single company:NTD 4,120,391K Highest Balance as of this month: NTD 47,993K Balance at the End of this Period: NTD 47,043K Utilized Amount: NTD 47,043K Ratio of Accumulated Amount of Endorsements/Guarantees to Equity of the Latest Financial Statements: 1.14 Limit of Endorsements/Guarantees: NTD 4,120,391K 8.Amounts/ contents/ number of page after correction: May 2026： Company Providing the Endorsement/Guarantee:GMI Technology HK Limited Beneficiary of the Endorsement/Guarantee:GMI USA Corporation Limit to a single company:NTD 4,120,391K Highest Balance as of this month: NTD 109,743K Balance at the End of this Period: NTD 109,743K Utilized Amount: NTD 47,043K Ratio of Accumulated Amount of Endorsements/Guarantees to Equity of the Latest Financial Statements: 2.66 Limit of Endorsements/Guarantees: NTD 4,120,391K 9.Countermeasures:Upload to MOPS after correction. 10.Any other matters that need to be specified:None

1.Date of occurrence of the event:2026/08/06 2.Company name:GMI Technology HK Limited 3.Relationship with the Company (please enter ”the company itself” or ”subsidiaries”):subsidiaries 4.Reciprocal shareholding percentage:NA 5.Cause of occurrence:Correction to the Endorsements/Guarantees disclosures in May 20266. 6.Information items/ statements to be corrected: Endorsements/Guarantees disclosures in May 2026 7.Amounts/ contents/ number of page to be corrected: May 2026： Company Providing the Endorsement/Guarantee:GMI Technology HK Limited Beneficiary of the Endorsement/Guarantee:GMI USA Corporation Limit to a single company:NTD 4,120,391K Highest Balance as of this month: NTD 47,993K Balance at the End of this Period: NTD 47,043K Utilized Amount: NTD 47,043K Ratio of Accumulated Amount of Endorsements/Guarantees to Equity of the Latest Financial Statements: 1.14 Limit of Endorsements/Guarantees: NTD 4,120,391K 8.Amounts/ contents/ number of page after correction: May 2026： Company Providing the Endorsement/Guarantee:GMI Technology HK Limited Beneficiary of the Endorsement/Guarantee:GMI USA Corporation Limit to a single company:NTD 4,120,391K Highest Balance as of this month: NTD 109,743K Balance at the End of this Period: NTD 109,743K Utilized Amount: NTD 0 Ratio of Accumulated Amount of Endorsements/Guarantees to Equity of the Latest Financial Statements: 2.66 Limit of Endorsements/Guarantees: NTD 4,120,391K 9.Countermeasures:Upload to MOPS after correction. 10.Any other matters that need to be specified:None

1.Date of occurrence of the event:2026/08/06 2.Company name:GMI Technology Inc. 3.Relationship with the Company (please enter ”the company itself” or ”subsidiaries”):the company itself 4.Reciprocal shareholding percentage:GMI Computing International Ltd. 5.Cause of occurrence:Correction to the Endorsements/Guarantees disclosures in April 2026, May 2026, and June 2026. 6.Information items/ statements to be corrected: Endorsements/Guarantees disclosures in April 2026 Endorsements/Guarantees disclosures in May 2026 Endorsements/Guarantees disclosures in June 2026 7.Amounts/ contents/ number of page to be corrected:None 8.Amounts/ contents/ number of page after correction: April 2026： Company Providing the Endorsement/Guarantee:GMI Technology Inc. Beneficiary of the Endorsement/Guarantee:GMI Computing International Ltd. Limit to a single company:NTD 392,287K Highest Balance as of this month: NTD 379,920K Balance at the End of this Period: NTD 379,920K Utilized Amount: NTD 0 Ratio of Accumulated Amount of Endorsements/Guarantees to Equity of the Latest Financial Statements: 9.72 Limit of Endorsements/Guarantees: NTD 392,287K May 2026： Company Providing the Endorsement/Guarantee:GMI Technology Inc. Beneficiary of the Endorsement/Guarantee:GMI Computing International Ltd. Limit to a single company:NTD 388,508K Highest Balance as of this month: NTD 376,260K Balance at the End of this Period: NTD 376,260K Utilized Amount: NTD 0 Ratio of Accumulated Amount of Endorsements/Guarantees to Equity of the Latest Financial Statements: 9.13 Limit of Endorsements/Guarantees:…

1.Date of a notice of the board of directors meeting is issued:2026/08/03 2.Expected date of the board of directors meeting is convened:2026/08/11 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:2026Q2 4.Any other matters that need to be specified:None

1.Date of the shareholders meeting:2026/06/17 2.Important resolutions (1)Profit distribution/ deficit compensation:Passed the ratification of the Company's 2025 earnings distribution proposal. 3.Important resolutions (2)Amendments to the corporate charter:None 4.Important resolutions (3)Business report and financial statements: Passed the ratificationof the Company's 2025 financial statements. 5.Important resolutions (4)Elections for board of directors and supervisors:None 6.Important resolutions (5)Any other proposals: (1)Passed the amendments to certain provisions of the Company's ”Procedures for Loans of Funds to Others” and ”Procedures for Endorsements/Guarantees”. (2)Passed the amendments to certain provisions of the Company's ”Rules of Procedure for Shareholders' Meetings”. 7.Any other matters that need to be specified:None

1.Date of occurrence of the event:2026/06/05 2.Cause of occurrence:Request by TWSE to announce. 3.Financial and business information: Period Recent Month Recent Quarter Most Recent Four Quarters Accum. MAY.2026 YOY% 2026Q1 YOY% 2025Q2~2026Q1 Account (IFRS- (IFRS- (IFRS- consolidated consolidated consolidated unreviewed) Audited) Audited) ========== ======= ========== ========= ========== ============ Operating 1982 18.30% 5,661 -0.81% 20,969 Revenue (million) Net profit 83 144.23% 227 11.42% 360 before tax (million) Net profit 72 150.11% 187 9.77% 305 (million) EPS 0.396 144.64% 1.03 -1.90% 1.72 (NT$) 4.Any matters regarding to ”Taiwan stock exchange corporation procedure for verification and disclosure of material information of companies with listed securities” article 4 that need to be specified:None 5.Any matters regarding to ”Taiwan stock exchange corporation procedure for verification and disclosure of material information of companies with listed securities” article 11 that need to be specified:None 6.Please inquiry the items of financial Information on the website of MOPS, and the paths as follow: (1)Current sales revenue/income(loss): Summaries>Financial Information applicable after adopting IFRSs (2)Historic sales revenue per month: Operating Statements>Monthly Sales Revenue> Statement of Sales Revenue(after adopting IFRSs) (3)Historic income or loss(audited/reviewed by the CPA): Financial Statements> FINANCIAL STATEMENT after adopting IFRSs>Balance Sheet/Income Statement (4)Historic income or loss (self-assessed): Operating…

1.Name and nature of the underlying assets (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g., dividend yield, etc.):Preferred Shares issued by GMI Computing Holding (Cayman) Ltd. 2.Date of occurrence of the event:2026/05/11 3.Date of the board of directors resolution:2026/05/11 4.Other approval date:NA 5.Amount, unit price, and total monetary amount of the transaction: (1)Amount:3,865,398 shares Unit price:USD2.845761 per share Total monetary amount of the transaction:USD11,000,000 6.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):Related party(GMI Computing Holding (Cayman) Ltd.) 7.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)The trading counterparty：Related partyGMI Computing Holding (Cayman) Ltd. (2)The reason for choosing the related party as trading counterparty： GMIC has cultivated the AI computing power market for many years and has extensive experience in operations and the establishment…

1.Date of occurrence of the event:2026/05/11 2.For the company for whom the endorsements/guarantees were made, please specify name of endorsed/guaranteed company, its relationship with the Company providing endorsements/guarantees, the ceiling on the endorsements/guarantees (thousand NTD), the original amount of endorsements/guarantees (thousand NTD), the amount of the current additional endorsements/guarantees (thousand NTD), the amount of endorsements/guarantees as of the date of occurrence (thousand NTD), the actual loaned amount of the company for whom endorsements/guarantees were made (thousand NTD), and the reason for the current additional endorsements/guarantees: (1)Name of endorsed/guaranteed company:GMI Technology HK Limited (2)Relationship with the Company providing endorsements/guarantees: subsidiary of GMI Technology Inc. (3)The ceiling on the endorsements/guarantees (thousand NTD)： NT$3,296,313 thousand (4)The original amount of endorsements/guarantees (thousand NTD): NT$376,860 thousand (5)The amount of the current additional endorsements/guarantees (thousand NTD): NT$1,428,928 thousand (6)The amount of endorsements/guarantees as of the date of occurrence (thousand NTD): NT$1,805,788 thousand (7)The actual loaned amount of the company for whom endorsements/guarantees were made (thousand NTD): NT$0 (8)The reason for the current additional endorsements/guarantees: For operational policy, the three-year credit facility agreement entered into between the subsidiary and the bank is joint guaranteed by the parent company. 3.For collaterals provided by the company for whom the…

1.Date of submission to the board of directors or approval by the board of directors:2026/05/11 2.Date of approval by the audit committee:2026/05/11 3.Start and end dates of financial reports or annual self-assessed financial information of the reporting period (XXXX/XX/XX~XXXX/XX/XX): 2026/01/01~2026/03/31 4.Operating revenue accumulated from 1/1 to end of the period (thousand NTD):5,660,657 5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD):301,744 6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD):160,684 7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD):226,668 8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD):187,350 9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period (thousand NTD):187,350 10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD):1.03 11.Total assets end of the period (thousand NTD):12,207,790 12.Total liabilities end of the period (thousand NTD):8,087,399 13.Equity attributable to owners of parent end of the period (thousand NTD):4,120,391 14.Any other matters that need to be specified:None

1.Date of a notice of the board of directors meeting is issued:2026/04/30 2.Expected date of the board of directors meeting is convened:2026/05/11 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:2026Q1 4.Any other matters that need to be specified:None