Announcements

1.Date of a notice of the board of directors meeting is issued:2026/02/11 2.Expected date of the board of directors meeting is convened:2026/02/26 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:2025 Annual Financial Report 4.Any other matters that need to be specified:None

1.Date of occurrence of the event:2026/02/09 2.Company name:Taiwan Business Bank,Ltd. 3.Relationship to the Company (please enter ”head office” or ”subsidiaries”):Head office 4.Reciprocal shareholding ratios:Na 5.Cause of occurrence:As Subject 6.Countermeasures:Na 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.): In January,2026, the Bank reported the consolidated income before tax was NT $1,631 million, the consolidated income after tax was NT $1,316 million. The accumulated consolidated income before tax was NT $1,631 million, the accumulated consolidated income after tax was NT $1,316 million, the accumulated consolidated EPS before tax was NT$0.17, the accumulated consolidated EPS after tax was NT$0.14, consolidated book value per share was NT$15.28. Above figures are not audited or reviewed by CPA.

1.Date of institutional investor conference:2026/03/19 2.Time of institutional investor conference:14:00 3.Location of institutional investor conference:Webcast 4.Outline of institutional investor conference:Disclosure of Taiwan Business Bank's performance in 2025Q4, the conference will be conducted in Mandarin. 5.Any other matters that need to be specified:None.

1.Date of the board of directors resolution:2026/01/14 2.Name [issue no.__ of (secured, unsecured) corporate bonds of ___________ (company)]:Taiwan Business Bank 1st Senior Unsecured Financial Debentures in 2026. 3.Whether to adopt shelf registration (Yes/No):No 4.Total amount issued:TWD 1 Billion. 5.Face value per bond:To be determined. 6.Issue price:To be determined. 7.Issuance period:To be determined. 8.Coupon rate:To be determined. 9.Types, names, monetary values and stipulations of collaterals:N/A. 10.Use of the funds raised by the offering and utilization plan:To assist enterprises in the investment projects for environmental improvements and social benefits, etc. 11.Underwriting method:To be determined. 12.Trustees of the corporate bonds:None. 13.Underwriter or agent:To be determined. 14.Guarantor(s) for the issuance:None. 15.Agent for payment of the principal and interest:The Banking Department of Taiwan Business Bank. 16.Certifying institution:None. 17.Where convertible into shares, the rules for conversion:N/A. 18.Sell-back conditions:N/A. 19.Buyback conditions:N/A. 20.Reference date for any additional share exchange, stock swap, or subscription:N/A. 21.Possible dilution of equity in case of any additional share exchange, stock swap, or subscription:N/A. 22.Any other matters that need to be specified:None.

1.Date of occurrence of the event:2026/01/09 2.Company name:Taiwan Business Bank,Ltd. 3.Relationship to the Company (please enter ”head office” or ”subsidiaries”):Head office 4.Reciprocal shareholding ratios:Na 5.Cause of occurrence:As Subject 6.Countermeasures:Na 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.): In December,2025, the Bank reported the consolidated income before tax was NT $759 million, the consolidated income after tax was NT $631 million. The accumulated consolidated income before tax was NT $15,236 million, the accumulated consolidated income after tax was NT $12,225 million, the accumulated consolidated EPS before tax was NT$1.57, the accumulated consolidated EPS after tax was NT$1.26, consolidated book value per share was NT$15.14. Above figures are not audited or reviewed by CPA.