Shareholder Services

1.Date of occurrence of the event:2026/07/31
2.Date of the original announcement and reporting:2020/12/22
3.Summary of the content originally announced and reported:
  A.On December 22, 2020, the Company’s Board of Directors approved the expansion of the Taoyuan Processing
      Center on self-owned land, with a budget of NT$906 million.
  B.On December 22, 2022, the Company's Board of Directors approved a budget adjustment. To accommodate the
      additional plant construction required under the amended development plan for the “Tung Ho Guanyin
      Industrial Park,” the total budget was adjusted to NT$1.338 billion.
4.Reason for change and its main content:
  A.The PPVC (Prefabricated Prefinished Volumetric Construction) method will be adopted for the employee dormitory
      construction project to mitigate the risk of construction labor shortages, ensure the project schedule, and support
      carbon-reduction policies. The spatial layout will also be redesigned to meet modern privacy needs, with more
      single-occupancy rooms to enhance the quality of employee accommodation and foster a friendly workplace.
  B.An additional budget of NT$85 million is proposed for the employee dormitory construction project, increasing the
      total budget to NT$1.423 billion.
5.Effect on the Company's finance and business after the change: No significant impact on the Company's financial and
   business after the change.
6.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 and actingspokesperson.
2.Date of occurrence of the change:2026/07/31
3.Name, title, and resume of the previous position holder:
  (1)Spokesperson: Chen Chun-Liang,Manager of President Office.
  (2)Acting spokesperson:
      A.Ho, Ju-Yu,The Company's Corporate Governance Officer, concurrently serving as Vice President of
          the Administration Division.
      B.Kuo Shu-mei,senior Manager of Finance and Accounting Division.
4.Name, title, and resume of the new position holder:
  (1)Spokesperson: Kuo Shu-mei,senior Manager of Finance and Accounting Division.
  (2)Acting spokesperson:
      A.Chen,Guan-Wen,Deputy Manager of the Internal Audit Department.
      B.Liu,Bo-Chi,Assistant Deputy Manager of Finance and Accounting Division.
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:2026/08/01
8.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:2026/07/31
2.Date of approval by the audit committee:2026/07/28
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):29,865,731
5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD):4,935,741
6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD):3,612,981
7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD):3,866,745
8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD):2,992,341
9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period
   (thousand NTD):2,971,876
10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD):4.07
11.Total assets end of the period (thousand NTD):53,355,877
12.Total liabilities end of the period (thousand NTD):19,087,824
13.Equity attributable to owners of parent end of the period (thousand NTD):34,170,013
14.Any other matters that need to be specified:None.

1.Date of occurrence of the event:2026/07/31
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)The company name：Tung Ho Steel Vietnam Corp.,Ltd.
  (2)It's relationship with the Company:Our subsidiary of 100% direct investment.
  (3)The ceiling on the endorsements/guarantees(thousand NTD): NT$16,213,605
  (4)The original amount of endorsements/guarantees(thousand NTD): NT$5,478,200
  (5)The amount of the current additional endorsements/guarantees (thousand NTD):NT$5,573,750
  (6)The amount of endorsements/guarantees as of the date of occurrence of the event(thousand NTD):NT$11,051,950
  (7)The actual loaned amount of the company who was made the endorsements /guarantees(thousand NTD):NT$1,825,292
  (8)The reason for the current additional endorsements/guarantees: The bank loan contracts of Tung Ho Steel Vietnam
       Corp.,Ltd. need to be renewed, and these cases were approved by our board of directors. The balance meets the
       disclosure threshold under Article 25, Paragraph 1, Subparagraph 4 of the applicable regulations.
3.For collaterals provided by the company for whom the endorsements/guarantees were made, the content and the
   value (thousand NTD): None.
4.For the latest financial statements of the company for whom the endorsements/guarantees were made, the Capital
   (thousand NTD) and Cumulative gains/losses (thousand NTD):
  (1)Capital(thousand NTD):NT$6,333,408
  (2)Cumulative gains/losses(thousand NTD):-NT$3,766,443
5.For termination of endorsement/guarantee obligations, the condition and the date:
  (1)Condition:When Tung Ho Steel Vietnam Corp.,Ltd. cancels the loan's facility with the bank, we can cancel it's
       responsibility of the guarantee.
  (2)Date:When Tung Ho Steel Vietnam Corp.,Ltd. cancels the loan's facility with the bank.
6.The total amount of the ceiling on endorsements/guarantees (thousand NTD): NT$16,213,605
7.The total amount of endorsements/guarantees as of the date of occurrence (thousand NTD):NT$12,450,961
8.The amount of endorsements/guarantees as a percentage of the public company’s net worth on the latest financial
   report as of the date of occurrence:38.40%
9.The aggregate amount of equity method investments, endorsements/guarantees, and monetary loans extended to
   others as a percentage of the public company’s net worth on the latest financial statements:50.41%
10.Any other matters that need to be specified:
  The exchange rate of USD was 31.85 from the end of June 2026.
  The exchange rate of VND was 0.001198 from the end of June 2026.

1.Date of a notice of the board of directors meeting is issued:2026/07/23
2.Expected date of the board of directors meeting is convened:2026/07/31
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: Consolidated financial report for 2026 second
   quarter.
4.Any other matters that need to be specified:None.

1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City):
   1.Portions of Land Parcel No. 1709 and seventeen others, Xinsheng Section,Qianzhen District, Kaohsiung City,
      together with the steel structure plant,container office, office equipment, and related facilities thereon.
2.Date of occurrence of the event:2026/06/09
3.Date of the board of directors resolution:2026/06/09
4.Other approval date:Not applicable.
5.Transaction unit amount (e.g.XX square meters, equivalent to XX ping), unit price, and total transaction price:
     (1) Subsidiary:Tung Kang Steel Structure Corp.
        (A).Transaction Quantity:18,804 square meters (approx. 5,688.21 ping) in Qianzhen District, Kaohsiung City.
        (B).Unit price:From July 1, 2026 to December 31, 2026; The rent is payable quarterly at NT$2,257,650 (tax inclusive)
               per quarter, and the usage fee for movable equipment is NT$13,500 (tax inclusive) per quarter.
        (C).Total transaction price: NT$4,542,300 (tax inclusive).
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):
         (A).Trading counterparty:Tung Kang Steel Structure Corp.
         (B).Relationship with the Company:Subsidiary.
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:
         (A).Reason for selecting the transaction party:For the overall planning and management considerations of the company.
         (B).The identity of the previous owner:None.
         (C).Its relationship with the Company and the trading counterparty:None.
         (D).The previous date and monetary amount of transfer:None.
8.Where an owner of the underlying assets within the past five years has been a related party of the Company, the
   announcement shall also include the date and price of acquisition and disposal by the related party, and its relationship
   with the Company at the time of the transaction:Not applicable.
9.Projected gain (or loss) through disposal (not applicable for acquisition of assets; those with deferral should provide
   a table explaining recognition):Not applicable.
10.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract,
     and other important terms and conditions:
   (1)Portions of Land Parcel No. 1709 and seventeen others, Xinsheng Section, Qianzhen District, Kaohsiung City, together
        with the steel structure plant, container office, office equipment, and related facilities thereon.
        (A)Payment Terms: As stipulated in the lease agreement.
        (B)Lease Term:July 1, 2026 to December 31, 2026.
        (C)Transaction Amount: NT$4,542,300 (tax inclusive).
        (D)Contractual restrictions and other important covenants:The current lease expires on June 30, 2026.
11.The manner of deciding on this transaction (such as invitation to tender, price comparison, or price negotiation),
     the reference basis for the decision on price, and the decision-making unit:
        (A).Reference Basis for Price Determination:Reference to market rental levels.
        (B).Decision-Making Authority:Board of Directors.
12.Name of the professional appraisal firm or company and its appraisal price:Not applicable.
13.Name of the professional appraiser:Not applicable.
14.Practice certificate number of the professional appraiser:Not applicable.
15.The appraisal report has a limited price, specific price, or special price:Not applicable.
16.An appraisal report has not yet been obtained:Not applicable.
17.Reason for an appraisal report not being obtained:Not applicable.
18.Reason for any significant discrepancy with the appraisal reports and opinion of the CPA:Not applicable.
19.Name of the CPA firm:Not applicable.
20.Name of the CPA:Not applicable.
21.Practice certificate number of the CPA:Not applicable.
22.Broker and broker's fee:Not applicable.
23.Concrete purpose or use of the acquisition or disposal:For overall corporate planning and management considerations.
24.Any dissenting opinions of directors to the present transaction:None.
25.Whether the counterparty of the current transaction is a related party:Yes.
26.Date of ratification by supervisors or approval by the audit committee:2026/06/09
27.The transaction is to acquire a real property or right-of-use asset from a related party:None.
28.The price assessed in accordance with the Article 16 of the Regulations Governing the Acquisition and Disposal
     of Assets by Public Companies:Not applicable.
29.Where the above assessed price is lower than the transaction price, the price assessed in accordance with the
     Article 17 of the same regulations:Not applicable.
30.Date on which material information regarding the same event has been previously released:NA
31.Any other matters that need to be specified:The execution of this lease agreement is subject to the approval
     of the Audit Committee and the Board of Directors on June 9, 2026.

1.Date of occurrence of the change:2026/06/09
2.Name of the functional committees:Remuneration and Nomination Committee.
3.Name of the previous position holder:
   A.Jih-Gang Liu
   B.Chia-Wen Liu
   C.Chen-Ming Chu
4.Resume of the previous position holder:
   A.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   B.Chia-Wen Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Chen-Ming Chu ,professor, Department of Applied Economics and Management of National Ilan University.
5.Name of the new position holder:
   A.Jih-Gang Liu
   B.Chia-Wen Liu
   C.Ming-Te Sun
6.Resume of the new position holder:
   A.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   B.Chia-Wen Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Ming-Te Sun,Independent Director of Tung Ho Steel Enterprise Corporation.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or
   “new appointment”):new appointment.
8.Reason for the change:Appointment of the Members of the 6th Remuneration and Nomination Committee.
9.Original term (from __________ to __________):2023/06/19-2026/05/22, corresponding to the term of office of
   the Company’s 25th Board of Directors.
10.Effective date of the new member:2026/06/09.
11.Any other matters that need to be specified:
   A.The term of the 5th Remuneration and Nomination Committee commenced on June 19, 2023 and expired
        upon the expiration of the term of office of the 25th Board of Directors.
   B.The term of office of the members of the 6th Remuneration and Nomination Committee shall commence
       on the date of approval of this appointment by the Board of Directors and continue until May 21, 2029,
       corresponding to the term of office of the Company's 26th Board of Directors. If the term of office of the
       Board of Directors expires and the directors continue to perform their duties until the newly elected
       directors assume office, the term of office of the members of the 6th Remuneration and Nomination
       Committee shall be extended accordingly.

1.Date of occurrence of the change:2026/06/09
2.Name of the functional committees:Sustainability Development Committee.
3.Name of the previous position holder:
   A.Chieh-Teng Ho
   B.Der-Ming Lieu
   C.Jih-Gang Liu
4.Resume of the previous position holder:
   A.Chieh-Teng Ho,Chairman of Tung Ho Steel Enterprise Corporation.
   B.Der-Ming Lieu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
5.Name of the new position holder:
   A.Chieh-Teng Ho
   B.Jih-Gang Liu
   C.Wen-Ling Ko
6.Resume of the new position holder:
   A.Chieh-Teng Ho,Chairman of Tung Ho Steel Enterprise Corporation.
   B.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Wen-Ling Ko,Independent Director of Tung Ho Steel Enterprise Corporation.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or
 “new appointment”):new appointment.
8.Reason for the change: Appointment of the Members of the 4th Sustainability Development Committee
   by the Board of Directors.
9.Original term (from __________ to __________):2023/06/19-2026/05/22, corresponding to the term of office
   of the Company’s 25th Board of Directors.
10.Effective date of the new member:2026/06/09.
11.Any other matters that need to be specified:
   A.The term of the 3rd Sustainability Development Committee commenced on June 19, 2023 and expired
       upon the expiration of the term of office of the 25th Board of Directors.
   B.The term of office of the members of the 4th Sustainability Development Committee shall commence
       on the date of approval of this appointment by the Board of Directors and continue until May 21, 2029,
       corresponding to the term of office of the Company's 26th Board of Directors. If the term of office of the
       Board of Directors expires and the directors continue to perform their duties until the newly elected
       directors assume office, the term of office of the members of the 4th Sustainability Development
       Committee shall be extended accordingly.

1.Date of the shareholders meeting:2026/05/22
2.Important resolutions (1)Profit distribution/ deficit compensation:Ratified the proposal for distribution of
   2025 profits.
3.Important resolutions (2)Amendments to the corporate charter: To approve discussion of amendments to the
   ”Articles of Incorporation”.
4.Important resolutions (3)Business report and financial statements: To approve admitting the business reports
   and financial statements of 2025.
5.Important resolutions (4)Elections for board of directors and supervisors: The elected list of our 26th Directors'
   (include Independent Directors') election were 11 Directors(include 4 Independent Directors).
   A.Director:Mao Sheng Investment Inc. Representative:Chieh-Teng Ho.
   B.Director:Mao Sheng Investment Inc. Representative:Chi-Hsieh Lin.
   C.Director:Ho Jao Investment Inc. Representative:Yu-Shu Ho.
   D.Director:Ho Jao Investment Inc. Representative:Kuan-Ren Guu.
   E.Director:Han Lei Investment Co. Representative:Chih-Ming Huang.
   F.Director:Ji-cheng Investment Inc. Representative:Pao-Ho Chen.
   G.Director:ORION INVESTMENT CO., LTD. Representative:Yen-Liang Hou.
   H.Independent Director:Jih-Gang Liu.
    I.Independent Director:Chia-Wen Liu.
   J.Independent Director:Ming-Te Sun.
   K.Independent Director:Wen-Ling Ko.
6.Important resolutions (5)Any other proposals: To approve resolutions of removal of the Non-compete Clause
   for directors and their representatives.
7.Any other matters that need to be specified:None.

1.Date of occurrence of the change:2026/05/22
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:
   A.Director: Representative of Mao Sheng Investment Inc.:Chieh-Teng Ho.
   B.Director: Representative of Mao Sheng Investment Inc.:Tung,Po-Hsun.
   C.Director: Representative of Ho Jao Investment Co., Ltd.:Yu-Shu Ho.
   D.Director: Representative of Han Lei Investment Co.:Chih-Ming Huang.
   E.Director: Representative of Liang Cheng Investment Co., Ltd.: Pao-Ho Chen.
   F.Director: Yean-Liang Hou.
   G.Independent Director: Der-Ming Lieu.
   H.Independent Director: Jih-Gang Liu.
   I.Independent Director: Chia-Wen Liu.
4.Resume of the previous position holder:
   A.Chieh-Teng Ho,Chairman of Tung Ho Steel Enterprise Corporation.
   B.Tung,Po-Hsun,Director of Tung Ho Steel Enterprise Corporation.
   C.Yu-Shu Ho,Vice Chairman of Tung Ho Steel Enterprise Corporation.
   D.Chih-Ming Huang,Director of Tung Ho Steel Enterprise Corporation.
   E.Pao-Ho Chen,Director of Tung Ho Steel Enterprise Corporation.
   F.Yean-Liang Hou,Director of Tung Ho Steel Enterprise Corporation.
   G.Der-Ming Lieu,Independent Director of Tung Ho Steel Enterprise Corporation.
   H.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   I.Chia-Wen Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
5.Title and name of the new position holder:
   A.Director: Representative of Mao Sheng Investment Inc.:Chieh-Teng Ho.
   B.Director: Representative of Mao Sheng Investment Inc.:Chi-Hsieh Lin.
   C.Director: Representative of Ho Jao Investment Co., Ltd.:Yu-Shu Ho.
   D.Director: Representative of Ho Jao Investment Co., Ltd.:Kuan-Ren Guu.
   E.Director: Representative of Han Lei Investment Co.:Chih-Ming Huang.
   F.Director: Representative of Ji-cheng Investment Inc.:Pao-Ho Chen.
   G.Director: Representative of ORION INVESTMENT CO., LTD.:Yean-Liang Hou.
   H.Independent Director: Jih-Gang Liu.
   I.Independent Director: Chia-Wen Liu.
   J.Independent Director: Ming-Te Sun.
   K.Independent Director: Wen-Ling Ko.
6.Resume of the new position holder:
   A.Chieh-Teng Ho,Chairman of Tung Ho Steel Enterprise Corporation.
   B.Chi-Hsieh Lin,Consultant of Tung Ho Steel Enterprise Corporation.
   C.Yu-Shu Ho,Vice Chairman of Tung Ho Steel Enterprise Corporation.
   D.Kuan-Ren Guu,Consultant of Tung Ho Steel Enterprise Corporation.
   E.Chih-Ming Huang,Director of Tung Ho Steel Enterprise Corporation.
   F.Pao-Ho Chen,Director of Tung Ho Steel Enterprise Corporation.
   G.Yean-Liang Hou,Director of Tung Ho Steel Enterprise Corporation.
   H.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   I.Chia-Wen Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   J.Ming-Te Sun,Director, Macroeconomic Forecasting Center, Taiwan Institute of Economic Research.
   K.Wen-Ling Ko,Director and Spokesperson of Tong Ming Enterprise Co., Ltd.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or
  “new appointment”):term expired.
8.Reason for the change:term expired and re-election.
9.Number of shares held by the new position holder when elected:
   A.Director: Representative of Mao Sheng Investment Inc.: Chieh-Teng Ho.:65,122,877 Shares.
   B.Director: Representative of Mao Sheng Investment Inc.: Chi-Hsieh Lin.:65,122,877 Shares.
   C.Director: Representative of Ho Jao Investment Co., Ltd.: Yu-Shu Ho.:62,835,750 Shares.
   D.Director: Representative of Ho Jao Investment Co., Ltd.: Kuan-Ren Guu.:62,835,750 Shares.
   E.Director: Representative of Han Lei Investment Co.: Chih-Ming Huang.: 3,387,285 Shares.
   F.Director: Representative of Ji-cheng Investment Inc.: Pao-Ho Chen.: 7,580,433 Shares.
   G.Director: Representative of ORION INVESTMENT CO., LTD.: Yean-Liang Hou.: 4,200,000 Shares.
   H.Independent Director: Jih-Gang Liu.: 0 Shares.
   I.Independent Director: Chia-Wen Liu.: 0 Shares.
   J.Independent Director: Ming-Te Sun.: 0 Shares.
   K.Independent Director: Wen-Ling Ko.: 0 Shares.
10.Original term (from __________ to __________):2023/05/30-2026/05/29
11.Effective date of the new appointment:2026/05/22-2029/05/21
12.Turnover rate of directors of the same term:Not applicable.
13.Turnover rate of independent directors of the same term:Not applicable.
14.Turnover rate of supervisors of the same term:Not applicable.
15.Change in one-third or more of directors (Please enter “Yes” or “No”):Yes.
16.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.Date of the shareholders meeting resolution:2026/05/22
2.Name and title of the director with permission to engage in competitive conduct:
   A.Corporate shareholder:Mao Sheng Investment Inc.
   B.Director: Representative of Mao Sheng Investment Inc.:Chieh-Teng Ho.
   C.Director: Representative of Mao Sheng Investment Inc.:Chi-Hsieh Lin.
   D.Director: Representative of Ho Jao Investment Co., Ltd.:Yu-Shu Ho.
   E.Director: Representative of Ho Jao Investment Co., Ltd.:Kuan-Ren Guu.
   F.Director: Representative of Han Lei Investment Co.:Chih-Ming Huang.
   G.Director: Representative of Ji-cheng Investment Inc.:Pao-Ho Chen.
   H.Director: Representative of ORION INVESTMENT CO., LTD.:Yean-Liang Hou.
   I.Independent Director: Ming-Te Sun. J.Independent Director: Wen-Ling Ko.
3.Items of competitive conduct in which the director is permitted to engage: Directors and their representatives
   acting on behalf of themselves or others within the company's business scope.
4.Period of permission to engage in the competitive conduct: The term of the appointmant as directors in Tung
   Ho Steel Enterprise Corp.
5.Circumstances of the resolution (please describe the results of voting in accordance with Article 209 of the
   Company Act): The proposal has been approved with the required number of votes in favor.
6.If the permitted competitive conduct belongs to the operator of a mainland China area enterprise, the name
   and title of the directors (if it is not the operator of a Mainland-area enterprise, please enter “N/A” below):
   A.Representative of Mao Sheng Investment Inc.:Chieh-Teng Ho,Director.
   B.Representative of Mao Sheng Investment Inc.:Chi-Hsieh Lin,Director.
7.Company name of the mainland China area enterprise and the director's position in the enterprise:
   A.Fujian Sino-Japan Metal Corporation,Director.
   B.Fujian Sino-Japan Metal Corporation,Chairman.
8.Address of the mainland China area enterprise:No.16 Middle Luoxing Road, Mawei District,350015 Fuzhou, Fujian, China.
9.Operations of the mainland China area enterprise:Tin Plate. 10.Impact on the company's finance and business:
   A.To transfer the investment to the existent company in the third district, and reinvest the company in China.
   B.We adopted Equity Method to admit the investment gains.
11.If the directors have invested in the mainland China area enterprise, the monetary amount of the investment and their
     shareholding ratio: Not applicable.
12.Any other matters that need to be specified:None.

1.Date of the board of directors resolution or date of occurrence of the change:2026/05/22
2.Position (Please enter chairperson or president/general manager):chairperson
3.Name of the previous position holder:Chieh-Teng Ho.
4.Resume of the previous position holder: Chairman of Tung Ho Steel Enterprise Corp.
5.Name of the new position holder:Chieh-Teng Ho.
6.Resume of the new position holder: Chairman of Tung Ho Steel Enterprise Corp.
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.
9.Effective date of the new appointment:2026/05/22
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.Date of occurrence of the change:2026/05/22
2.Name of the functional committees:Sustainability Development Committee.
3.Name of the previous position holder:
   A.Chieh-Teng Ho
   B.Der-Ming Lieu
   C.Jih-Gang Liu
4.Resume of the previous position holder:
   A.Chieh-Teng Ho,Chairman of Tung Ho Steel Enterprise Corporation.
   B.Der-Ming Lieu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
5.Name of the new position holder:Not appointment yet.
6.Resume of the new position holder:Not applicable.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”,
  “death” or “new appointment”):term expired.
8.Reason for the change: In conjunction with the comprehensive election of directors at the
   2026 Annual Meeting of Shareholders, the tenure of the Sustainability Development Committee
   members is the same as that of the Board of Directors, and therefore they will be relieved of their
   duties upon completion of their terms.
9.Original term (from __________ to __________):2023/06/19-2026/05/29, corresponding to the term of
    office of the Company’s 25th Board of Directors.
10.Effective date of the new member:Not appointment yet.
11.Any other matters that need to be specified:The newly appointed Sustainability Development
     Committee will be announced separately shortly after the board appointment.

1.Date of occurrence of the change:2026/05/22
2.Name of the functional committees:Remuneration and Nomination Committee.
3.Name of the previous position holder:
   A.Jih-Gang Liu
   B.Chia-Wen Liu
   C.Chen-Ming Chu
4.Resume of the previous position holder:
   A.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   B.Chia-Wen Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Chen-Ming Chu ,professor, Department of Applied Economics and Management of National Ilan University.
5.Name of the new position holder:Not appointment yet.
6.Resume of the new position holder:Not applicable.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or “new
   appointment”):term expired.
8.Reason for the change: In conjunction with the comprehensive election of directors at the 2026 Annual Meeting
   of Shareholders, the tenure of the Remuneration and Nomination Committee members is the same as that of the
   Board of Directors, and therefore they will be relieved of their duties upon completion of their terms.
9.Original term (from __________ to __________):2023/06/19-2026/05/29, corresponding to the term of office of the
   Company’s 25th Board of Directors.
10.Effective date of the new member:Not appointment yet.
11.Any other matters that need to be specified:The newly appointed Remuneration and Nomination Committee
     will be announced separately shortly after the board appointment.

1.Date of occurrence of the change:2026/05/22
2.Name of the functional committees:Audit Committee.
3.Name of the previous position holder:
   A.Der-Ming Lieu
   B.Jih-Gang Liu
   C.Chia-Wen Liu
4.Resume of the previous position holder:
   A.Der-Ming Lieu,Independent Director of Tung Ho Steel Enterprise Corporation.
   B.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Chia-Wen Liu ,Independent Director of Tung Ho Steel Enterprise Corporation.
5.Name of the new position holder:
   A.Jih-Gang Liu
   B.Chia-Wen Liu
   C.Ming-Te Sun D.Wen-Ling Ko
6.Resume of the new position holder:
   A.Jih-Gang Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   B.Chia-Wen Liu,Independent Director of Tung Ho Steel Enterprise Corporation.
   C.Ming-Te Sun ,Director, Macroeconomic Forecasting Center, Taiwan Institute of Economic Research.
   D.Wen-Ling Ko,Director and Spokesperson of Tong Ming Enterprise Co., Ltd.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or
  “new appointment”):term expired.
8.Reason for the change:term expired.
9.Original term (from __________ to __________):2023/05/30-2026/05/29,
10.Effective date of the new member:2026/05/22.
11.Any other matters that need to be specified: The term of the members of the Audit Committee shall be
     the same as that of the current Board of Directors.

1.Date of submission to the board of directors or approval by the board of directors:2026/04/28
2.Date of approval by the audit committee:2026/04/28
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):13,602,390
5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD):2,004,381
6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD):1,390,762
7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD):1,521,134
8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD):1,218,141
9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period
   (thousand NTD):1,211,982
10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD):1.66
11.Total assets end of the period (thousand NTD):51,955,456
12.Total liabilities end of the period (thousand NTD):19,405,487
13.Equity attributable to owners of parent end of the period (thousand NTD):32,427,210
14.Any other matters that need to be specified:None.

1.Date of the resolution of the board of directors or shareholders meeting:2026/04/28
2.Content of the investment plan:The Company held a Board of Directors meeting today (April 28), during which the capital
   expenditure budget for 2026 was approved in the amount of NT$ 4.15 billion.
3.Projected monetary amount of the investment:Same as the aforementioned paragraph.
4.Projected date of the investment:Not Applicable.
5.Source of capital funds:Internal resources (self-owned funds) and bank borrowings.
6.Specific purpose:In alignment with the Company’s policies for energy saving, carbon reduction, and automation
   enhancement, the budget is intended to promote equipment retrofitting and replacement plans. These initiatives aim to
   improve overall operational efficiency, reduce energy consumption and carbon emissions, increase productivity, and
   optimize production processes.
7.Any other matters that need to be specified:The execution of the aforementioned capital expenditure budgets will be
  flexibly adjusted based on the Company’s actual operational status. The actual amounts paid will be determined by the
  progress of implementation and relevant payment terms.

1.Date of occurrence of the event:2026/04/28
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:
  I.First:
    (1)The company name：Tung Ho Steel Vietnam Corp.,Ltd.
    (2)It's relationship with the Company:Our subsidiary of 100% direct investment.
    (3)The ceiling on the endorsements/guarantees(thousand NTD): NT$16,213,605
    (4)The original amount of endorsements/guarantees(thousand NTD): NT$10,784,000
    (5)The amount of the current additional endorsements/guarantees (thousand NTD):NT$960,000
    (6)The amount of endorsements/guarantees as of the date of occurrence of the event(thousand NTD):NT$11,744,000
    (7)The actual loaned amount of the company who was made the endorsements /guarantees(thousand NTD):NT$1,721,920
    (8)The reason for the current additional endorsements/guarantees: The bank loan contracts of Tung Ho Steel Vietnam Corp.,Ltd.
         need to be renewed, and these cases were approved by our board of directors. The balance meets the disclosure threshold
         under Article 25, Paragraph 1, Subparagraph 4 of the applicable regulations.
  II.Second:
    (1)The company name：FUJIAN SINO-JAPAN METAL CORP.
    (2)It's relationship with the Company:An affiliated company jointly invested in, with endorsements/guarantees provided by all
        shareholders in proportion to their shareholdings.
    (3)The ceiling on the endorsements/guarantees(thousand NTD): NT$16,213,605
    (4)The original amount of endorsements/guarantees(thousand NTD): NT$1,405,600
    (5)The amount of the current additional endorsements/guarantees (thousand NTD):NT$1,405,600
    (6)The amount of endorsements/guarantees as of the date of occurrence of the event(thousand NTD):NT$2,811,200
    (7)The actual loaned amount of the company who was made the endorsements /guarantees(thousand NTD):NT$648,832
    (8)The reason for the current additional endorsements/guarantees: The bank loan contracts of FUJIAN SINO-JAPAN METAL
        CORP. need to be renewed, and these cases were approved by our board of directors. The balance meets the disclosure
        threshold under Article 25, Paragraph 1, Subparagraph 4 of the applicable regulations.
3.For collaterals provided by the company for whom the endorsements/guarantees were made, the content and the value
   (thousand NTD): None.
4.For the latest financial statements of the company for whom the endorsements/guarantees were made, the Capital
   (thousand NTD) and Cumulative gains/losses (thousand NTD):
    (1)Capital(thousand NTD):NT$8,231,791
    (2)Cumulative gains/losses(thousand NTD):-NT$4,795,410
5.For termination of endorsement/guarantee obligations, the condition and the date:
    (1)Condition:When Tung Ho Steel Vietnam Corp.,Ltd. and FUJIAN SINO-JAPAN METAL CORP. cancels the loan's facility
        with the bank, we can cancel it's responsibility of the guarantee.
    (2)Date:When Tung Ho Steel Vietnam Corp.,Ltd. and FUJIAN SINO-JAPAN METAL CORP.cancels the loan's facility with the bank.
6.The total amount of the ceiling on endorsements/guarantees (thousand NTD): NT$16,213,605
7.The total amount of endorsements/guarantees as of the date of occurrence (thousand NTD):NT$14,555,200
8.The amount of endorsements/guarantees as a percentage of the public company’s net worth on the latest financial report as
    of the date of occurrence:44.89%
9.The aggregate amount of equity method investments, endorsements/guarantees, and monetary loans extended to others as a
   percentage of the public company’s net worth on the latest financial statements:60.26%
10.Any other matters that need to be specified:
     The exchange rate of USD was 32.00 from the end of March 2026.
     The exchange rate of VND was 0.001198 from the end of March 2026.
     The exchange rate of CNY was 4.629 from the end of March 2026.

1.Date of occurrence of the event:2026/04/27
2.Company name:Tung Ho Steel Enterprise Corporation
3.Relationship with the Company (please enter ”the company itself” or ”subsidiaries”):the company itself
4.Reciprocal shareholding percentage:Not Applicable.
5.Cause of occurrence:The correction pertains to the cumulative maximum balance of funds loaned to the
   Company’s 100%-owned  subsidiary, Tung Ho Steel Vietnam Corp., Ltd., for the period from January to
   March 2026. The previous disclosure failed to accurately reflect the maximum balances reported at each
   month-end during data aggregation.
6.Information items/ statements to be corrected:Detailed Table of Loaning of Funds and Endorsements/Guarantees.
7.Amounts/ contents/ number of page to be corrected: The cumulative maximum balance of funds loaned by the
   Company to its 100%-owned subsidiary, Tung Ho Steel Vietnam Corp., Ltd., as of the current month is as follows:
     January 2026: NT$ 2,045,550 thousand.
     February 2026: NT$ 2,029,950 thousand.
     March 2026: NT$ 2,080,000 thousand.
8.Amounts/ contents/ number of page after correction: The cumulative maximum balance of funds loaned by the
  Company to its 100%-owned subsidiary, Tung Ho Steel Vietnam Corp., Ltd., as of the current month is as follows:
     January 2026: NT$ 1,888,200 thousand.
     February 2026: NT$ 2,342,250 thousand.
     March 2026: NT$ 2,400,000 thousand.
9.Countermeasures:The Company has strengthened its internal data verification mechanisms to enhance the accuracy
  of information disclosure. The corrected data has been re-uploaded to the Market Observation Post System (MOPS).
10.Any other matters that need to be specified:This correction involves only the adjustment of disclosed information.
    It does not affect the limits approved by the Board of Directors, nor does it have any impact on the Company’s
    finances or shareholders' equity. This announcement is made in accordance with regulations for the correction of
    material information.

1.Date of a notice of the board of directors meeting is issued:2026/04/20
2.Expected date of the board of directors meeting is convened:2026/04/28
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: Consolidated financial report for 2026 first quarter.
4.Any other matters that need to be specified:None.

1.Date of the resolution by the board of directors or shareholders meeting or decision by the Company:2026/04/15
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 dividend distribution:
  (1)Type:Cash dividends.
  (2)Monetary amount of dividend distribution:NT$1,547,328,953.
4.Ex-rights (ex-dividend) trading date:NA
5.Last date before book closure:2026/04/19
6.Book closure starting date:2026/04/20
7.Book closure ending date:2026/04/24
8.Ex-rights (ex-dividend) record date:2026/04/24
9.Any other matters that need to be specified: Cash Dividend payment date:2026/05/07

1.Date of the board of directors resolution or date of occurrence of the change:2026/04/15
2.Position (Please enter chairperson or president/general manager):chairperson
3.Name of the previous position holder:HO,CHIEH-TENG.
4.Resume of the previous position holder: Chairperson of TUNG KANG STEEL STRUCTURE CORPORATION.
5.Name of the new position holder:HO,CHIEH-TENG.
6.Resume of the new position holder: Chairperson of TUNG KANG STEEL STRUCTURE CORPORATION.
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 full re-election.
9.Effective date of the new appointment:2026/04/15
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.Date of the shareholders meeting:2026/04/13
2.Important resolutions (1)Profit distribution/ deficit compensation:Ratification of 2025 earnings distribution.
3.Important resolutions (2)Amendments to the corporate charter:None.
4.Important resolutions (3)Business report and financial statements: To approve admitting the business reports
   and financial statements of 2025.
5.Important resolutions (4)Elections for board of directors and supervisors: The list of elected candidates for the
  12th board of directors,consisting of 5 members, and 1 supervisor is as follows:
    (A)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HO,CHIEH-TENG.
    (B)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIU,CHENG-BING.
    (C)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HSIAO,YAO-YING.
    (D)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :FAN,JU-YIN.
    (E)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIANG,LIANG-CHIEH.
    (F) Supervisor: Earle Ho and Sons,Ltd.
6.Important resolutions (5)Any other proposals: Approved the removal of the non-competition restraint
   on the newly appointed director and their representative.
7.Any other matters that need to be specified:None.

1.Date of occurrence of the change:2026/04/13
2.Elected or changed position (Please enter institutional director, institutional supervisor, independent
   director, natural-person director or natural-person supervisor):institutional director,institutional supervisor
3.Title and name of the previous position holder:
    (A)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HO,CHIEH-TENG.
    (B)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIU,CHENG-BING.
    (C)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HSIAO,YAO-YING.
    (D)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :FAN,JU-YIN.
    (E)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIANG,LIANG-CHIEH.
    (F) Supervisor: Earle Ho and Sons,Ltd.
4.Resume of the previous position holder:
    (A)HO,CHIEH-TENG-Chairperson of TUNG HO STEEL ENTERPRISE CORPORATION.
    (B)CHIU,CHENG-BING-President of TUNG KANG STEEL STRUCTURE CORPORATION.
    (C)HSIAO,YAO-YING-Factory directort of Miaoli factory of TUNG HO STEEL ENTERPRISE CORPORATION.
    (D)FAN,JU-YIN-Assistant vice president of TUNG HO STEEL ENTERPRISE CORPORATION.
    (E)CHIANG,LIANG-CHIEH-Assistant vice president of TUNG HO STEEL ENTERPRISE CORPORATION.
5.Title and name of the new position holder:
    (A)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HO,CHIEH-TENG.
    (B)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIU,CHENG-BING.
    (C)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HSIAO,YAO-YING.
    (D)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :FAN,JU-YIN.
    (E)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIANG,LIANG-CHIEH.
    (F) Supervisor: Earle Ho and Sons,Ltd.
6.Resume of the new position holder:
    (A)HO,CHIEH-TENG-Chairperson of TUNG HO STEEL ENTERPRISE CORPORATION.
    (B)CHIU,CHENG-BING-President of TUNG KANG STEEL STRUCTURE CORPORATION.
    (C)HSIAO,YAO-YING-Factory directort of Miaoli factory of TUNG HO STEEL ENTERPRISE CORPORATION.
    (D)FAN,JU-YIN-Assistant vice president of TUNG HO STEEL ENTERPRISE CORPORATION.
    (E)CHIANG,LIANG-CHIEH-Assistant vice president of TUNG HO STEEL ENTERPRISE CORPORATION.
7.Circumstances of change (Please enter “resignation”, “dismissal”, “term expired”, “death” or
  “new appointment”):term expired
8.Reason for the change:Term expired and re-election 9.Number of shares held by the new position
   holder when elected:
    (A)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HO,CHIEH-TENG-201,121,339 Shares.
    (B)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIU,CHENG-BING-201,121,339 Shares.
    (C)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :HSIAO,YAO-YING-201,121,339 Shares.
    (D)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :FAN,JU-YIN-201,121,339 Shares.
    (E)Director: representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIANG,LIANG-CHIEH-201,121,339 Shares.
    (F) Supervisor: Earle Ho and Sons,Ltd.-3,537,016 Shares.
10.Original term (from __________ to __________):2023/04/19-2026/04/18
11.Effective date of the new appointment:2026/04/13-2029/04/12
12.Turnover rate of directors of the same term:Not applicable.
13.Turnover rate of independent directors of the same term:Not applicable.
14.Turnover rate of supervisors of the same term:Not applicable.
15.Change in one-third or more of directors (Please enter “Yes” or “No”):No.
16.Any other matters that need to be specified (the information disclosure also meets the requirements of Article7,
     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.): Term expired and full re-election.

1.Date of the shareholders meeting resolution:2026/04/13
2.Name and title of the director with permission to engage in competitive conduct:
    (A)Representative of TUNG HO STEEL ENTERPRISE CORPORATION :HO,CHIEH-TENG,Chairperson.
    (B)Representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIU,CHENG-BING,Director.
    (C)Representative of TUNG HO STEEL ENTERPRISE CORPORATION :HSIAO,YAO-YING,Director.
    (D)Representative of TUNG HO STEEL ENTERPRISE CORPORATION :FAN,JU-YIN,Director.
    (E)Representative of TUNG HO STEEL ENTERPRISE CORPORATION :CHIANG,LIANG-CHIEH,Director.
3.Items of competitive conduct in which the director is permitted to engage: Directors and their delegates act within
   the ambit of the company's business, either on their own behalf or on behalf of others.
4.Period of permission to engage in the competitive conduct: For the duration of being employed as directort of
   the Company.
5.Circumstances of the resolution (please describe the results of voting in accordance with Article 209 of the Company Act):
   All attending shareholders passed the motion without objection.
6.If the permitted competitive conduct belongs to the operator of a mainland China area enterprise, the name and title
   of the directors (if it is not the operator of a Mainland-area enterprise, please enter “N/A” below):Not applicable.
7.Company name of the mainland China area enterprise and the director's position in the enterprise:Not applicable.
8.Address of the mainland China area enterprise:Not applicable.
9.Operations of the mainland China area enterprise:Not applicable.
10.Impact on the company's finance and business:None.
11.If the directors have invested in the mainland China area enterprise, the monetary amount of the investment and
     their shareholding ratio: Not applicable.
12.Any other matters that need to be specified:None.

1.Date of occurrence of the event:2026/02/26
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)The company name：Tung Ho Steel Vietnam Corp.,Ltd.
  (2)It's relationship with the Company:Our subsidiary of 100% direct investment.
  (3)The ceiling on the endorsements/guarantees(thousand NTD): NT$16,376,437
  (4)The original amount of endorsements/guarantees(thousand NTD): NT$7,898,970
  (5)The amount of the current additional endorsements/guarantees (thousand NTD):NT$2,706,420
  (6)The amount of endorsements/guarantees as of the date of occurrence of the event(thousand NTD):NT$10,605,390
  (7)The actual loaned amount of the company who was made the endorsements /guarantees(thousand NTD):NT$1,122,126
  (8)The reason for the current additional endorsements/guarantees: The bank loan contracts of Tung Ho Steel Vietnam Corp.,Ltd.
       need to be renewed, and these cases were approved by our board of directors. Due to adopting the earlier time to make the
       announcement,therefore,the time of endorsements/guarantees were overlapped and reached the standard of the
       announcement.
3.For collaterals provided by the company for whom the endorsements/guarantees were made, the content and the value
  (thousand NTD): None.
4.For the latest financial statements of the company for whom the endorsements/guarantees were made, the Capital
   (thousand NTD) and Cumulative gains/losses (thousand NTD):
  (1)Capital(thousand NTD):NT$6,333,408
  (2)Cumulative gains/losses(thousand NTD):-NT$3,688,728
5.For termination of endorsement/guarantee obligations, the condition and the date:
  (1)Condition:When Tung Ho Steel Vietnam Corp.,Ltd. cancels the loan's facility with the bank, we can cancel it's responsibility
      of the guarantee.
  (2)Date:When Tung Ho Steel Vietnam Corp.,Ltd. cancels the loan's facility with the bank.
6.The total amount of the ceiling on endorsements/guarantees (thousand NTD): NT$16,376,437
7.The total amount of endorsements/guarantees as of the date of occurrence (thousand NTD):NT$11,987,710
8.The amount of endorsements/guarantees as a percentage of the public company’s net worth on the latest financial report
   as of the date of occurrence:36.60%
9.The aggregate amount of equity method investments, endorsements/guarantees, and monetary loans extended to others as
   a percentage of the public company’s net worth on the latest financial statements:47.52%
10.Any other matters that need to be specified: The exchange rate of USD was 31.47 from the end of January 2026. The exchange
     rate of VND was 0.001198 from the end of January 2026.

1.Date of the board of directors resolution :2026/02/26
2.Year or quarter which dividends belong to:Year 2025
3.Period which dividends belong to:2025/01/01~2025/12/31
4.Appropriations of earnings in cash dividends to shareholders (NT$ per share):NT$4.3
5.Cash distributed from legal reserve and capital surplus to shareholders (NT$ per share):Nil
6.Total amount of cash distributed to shareholders (NT$):NT$3,139,919,417
7.Appropriations of earnings in stock dividends to shareholders (NT$ per share):Nil
8.Stock distributed from legal reserve and capital surplus to shareholders (NT$ per share):Nil
9.Total amount of stock distributed to shareholders (shares):Nil
10.Any other matters that need to be specified: The share distribution is tentatively setted at NT$ 4.3 per share, which is
     based on the allocation of shares of 730,213,818. If other reasons which will affect the number of outstanding shares,
     shareholders' dividends per share will be changed accordingly,and the Chairman shall be authorized to make adjustments.
11.Par value of common stock:NT$10

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:2026/02/26
3.Name, title, and resume of the previous position holder:CHEN,YI-RU/ Deputy Manager of the Internal Audit Department
4.Name, title, and resume of the new position holder:CHEN,GUAN-WEN/ Deputy Manager of the Internal Audit Department
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:2026/03/01 8.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:2026/02/26
2.Date of approval by the audit committee:2026/02/26
3.Start and end dates of financial reports or annual self-assessed financial information of the reporting period
   (XXXX/XX/XX~XXXX/XX/XX): 2025/01/01~2025/12/31
4.Operating revenue accumulated from 1/1 to end of the period (thousand NTD):57,855,435
5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD):8,576,988
6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD):5,846,938
7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD):5,917,433
8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD):4,757,984
9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period
   (thousand NTD):4,720,934
10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD):6.47
11.Total assets end of the period (thousand NTD):51,997,209
12.Total liabilities end of the period (thousand NTD):17,534,863
13.Equity attributable to owners of parent end of the period (thousand NTD):34,345,972
14.Any other matters that need to be specified:None.

1.Date of occurrence of the event:2026/02/26
2.Reason for the donation:Approval of the budget for 2026 activities and administrative expenses.
3.Total amount of the donation:NTD 5 million, 60 tons of steel.
4.Counterparty to the donation:Tung Ho Steel Foundation.
5.Relationship with the Company:The foundation is contributed by our company.
6.Name and resume of independent director(s) that expressed an objection or qualified opinion:None.
7.Objection or qualified opinion by the aforementioned independent director(s):None.
8.Any other matters that need to be specified:None.

1.Date of the resolution by the board of directors or shareholders meeting or decision by the Company:2026/02/26
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:
  (1)Type:Cash dividends.
  (2)Monetary amount of dividend distribution:NT$3,139,919,417,and pay NT$4.3 per share.
4.Ex-rights (ex-dividend) trading date:2026/03/20
5.Last date before book closure:2026/03/23
6.Book closure starting date:2026/03/24
7.Book closure ending date:2026/03/28
8.Ex-rights (ex-dividend) record date:2026/03/28
9.Deadline for applying the conversion of the bond:None.
10.The closure period for the conversion of the bond will start from the date:None.
11.The closure period for the conversion of the bond will end on the date:None.
12.Payment date of common stock cash dividend distribution:2026/04/24
13.Any other matters that need to be specified: If thereafter, there are other reasons that affect the number of shares
    outstanding, and the interest rate of the allotted shares by shareholders changes as a result, the chairman of the
    board shall be authorized to adjust it.

1.Date of the board of directors resolution:2026/02/25
2.Type and monetary amount of dividend distribution: Appropriations of earnings in cash dividends to shareholders.
   Total amount of cash distributed to shareholders:NT$1,547,328,953.
3.Any other matters that need to be specified:None.

1.Date of the board of directors' resolution:2026/02/25
2.Shareholders meeting date:2026/04/13
3.Shareholders meeting location: 9F.,No.9,Sec.1,Chang'an E.Rd.,Zhongshan Dist.,Taipei City,Taiwan.
   (Conference room of Tung Kang Steel Structure Corp.)
4.Cause for convening the meeting (1)Reported matters:
   (1)Report on 2025 business report.
   (2)Report on auditing 2025 financial statements by Supervisors.
   (3)Report on 2025 remuneration of distribution for employees and directors.
5.Cause for convening the meeting (2)Acknowledged matters:
   (1)Acknowledgement of the 2025 Business Report and Financial Statements.
   (2)Acknowledgement of the 2025 Profit Distribution Proposal.
6.Cause for convening the meeting (3)Matters for Discussion:None.
7.Cause for convening the meeting (4)Election matters: Re-election of directors and supervisors of the company.
8.Cause for convening the meeting (5)Other Proposals: Discussion to approve the lifting of noncompetition restrictionsfor
  Corporate Director and Legal Representative.
9.Cause for convening the meeting (6)Extemporary Motions:None.
10.Book closure starting date:2026/03/15
11.Book closure ending date:2026/04/13
12.Any other matters that need to be specified: In accordance with Article 172-1 of the Company Law, it is proposed that
    from 2026/02/27 to 2026/03/09 before 9:00 a.m., The company's Finance and Accounting Department will accept
    proposal by paper from shareholders holding more than 1% of the shares. (Postal address: 6F.,No.9,Sec.1,Chang'an
    E.Rd., Zhongshan Dist.,Taipei City,Taiwan.)

1.Date of a notice of the board of directors meeting is issued:2026/02/13
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: Consolidated financial
   report for 2025 fourth quarter.
4.Any other matters that need to be specified:None.

1.Date of occurrence of the event:2026/01/23
2.Date of the original announcement and reporting:2024/10/21
3.Summary of the content originally announced and reported:
  1.Name and nature of the underlying asset (e.g., land located at Sublot XX, Lot XX, North District, Taichung City):
    (1).Partial factories and land of Tung Ho Steel Enterprise Corporation.
    (2).No. 540, Sec. 2, Jieshou Rd., Bade Dist., Taoyuan City 334029, Taiwan (R.O.C.)
  2.Transaction unit amount (e.g.XX square meters, equivalent to XX ping),unit price, and total transaction price:
    (1).Transaction unit amount: Lease of factory and land area totaling 2,500 ping.
    (2).Unit price:
      (a)Lease of factory and land from January 1, 2025, to December 31, 2027, with a monthly rent of NT$1,050,000 (including tax).
      (b)Lease of factory and land from January 1, 2028, to December 31, 2030, with a monthly rent of NT$1,102,500 (including tax).
      (c)Lease of factory and land from January 1, 2031, to December 31, 2034, with a monthly rent of NT$1,157,625 (including tax). 
  3.Total transaction amount: Right-of-use asset amount:NT$106,730,945.
  4.Lease Term: January 1, 2025 to December 31, 2034.
4.Reason for change and its main content:
  1.In response to Tung Kang Engineering & Construction Corp business expansion and operational space requirements,
     the Company plans to adjust the original scope of the lease. The leased area is planned to be expanded in three phases,
     and the actual leased area for each phase shall be subject to on-site measurement results.
  2.Summary of changes resulting from the contract amendment：
     Before Amendment： The leased factory buildings and land area totaled 2,500 ping.
     After Amendment： The leased factory buildings and land area shall be expanded in three phases:
      (1)Phase I: Area A, approximately 2,500 ping.
      (2)Phase II: Area B, approximately 500 ping. (The implementation is expected to commence on July 1, 2026.)
      (3)Phase III: Area C, approximately 1,947 ping.(The implementation is expected to commence on January 1, 2028.)
  3.Total transaction amount: Right-of-use asset amount:NT$182,952,166.
5.Effect on the Company's finance and business after the change:None.
6.Any other matters that need to be specified:
  1.This amendment involves a modification to the terms of the originally executed lease agreement. The implementation
     thereof shall be adjusted in a timely manner based on the actual operational needs of both parties and the relevant
     conditions.
   2.This amendment was approved by the Audit Committee on January 6, 2026, and subsequently approved by the Board of
      Directors on January 23, 2026. The subsidiary, Tung Kang Engineering & Construction Corp., Ltd., will submit the matter to
      its Board of Directors for ratification at its meeting scheduled to be held on February 24, 2026, after which the amended
      lease agreement will be executed.

1.Date of the board of directors' resolution：2026/01/23
2.Shareholders meeting date：2026/05/22
3.Shareholders meeting location：Miao-Li Factory of Tung Ho Steel Enterprise Corporation, No.22, Pingding, Erhu Village,
   ShiHwu Township, Miaoli County 36842, Taiwan.
4.Shareholders' meeting will be held by means of (physical shareholders' meeting/ hybrid shareholders' meeting /
   virtual-only shareholders' meeting)：physical shareholders' meeting
5.Cause for convening the meeting (1)：Report item(s)
  (1)：Report on 2025 business report.
  (2)：Report on auditing 2025 financial statements by Audit Committees.
  (3)：Report on 2025 earnings is cash dividends distribution.
  (4)：Report on 2025 remuneration of distribution for employees and directors.
  (5)：Report on 2025 payment of remuneration of directors.
  (6)：Report on the communication condition between Audit Committees and the director of internal audit.
6.Cause for convening the meeting (2)：Ratification Item(s)
  (1)：Acknowledgement of the 2025 Business Report and Financial Statements.
  (2)：Acknowledgement of the 2025 Profit Distribution Proposal.
7.Cause for convening the meeting (3)：Discussion Item(s)
  (1)：Discussion of amendments to the "Articles of Incorporation".
8.Cause for convening the meeting (4)：Election Item
  (1)：To elect directors (including independent directors).
9.Cause for convening the meeting (5)：Other Proposal(s)
  (1)：Discussion of the proposal of release the prohibition on the new directors and their representatives of the board
          from participation in competitive business.
10.Extemporary Motions：
11.Book closure starting date：2026/03/24
12.Book closure ending date：2026/05/22
13.Any other matters that need to be specified：