Hon Shen Announces Board Resolution to Provide Endorsement Guarantee for Subsidiary 'Hon Shen Precision Electric (Hubei) Co., Ltd.'

Date of Announcement: August 13, 2026 Date of Statement: August 12, 2026 Time of Statement: 17:59 Company Code: 3092 Company Name: Hon Shen Subject: Announcement of Board Resolution to Provide Endorsement Guarantee for Group Subsidiary 'Hon Shen Precision Electric (Hubei) Co., Ltd.' Applicable Clause: Clause 22 Factual Date: August 12, 2026

Explanation:

1. Factual Date: 08/12/2026

2. Endorsed and Guaranteed Entity: (1) Company Name: Hon Shen Precision Electric (Hubei) Co., Ltd. (2) Relationship with Guarantee-Providing Company: A grand-subsidiary company indirectly 100% owned by the Company (3) Endorsement Guarantee Limit (in thousand NTD): 1,239,476 (4) Previous Endorsement Guarantee Balance (in thousand NTD): 325,652 (5) Amount of New Endorsement Guarantee This Time (in thousand NTD): 95,780 (6) Endorsement Guarantee Balance as of Factual Date (in thousand NTD): 421,432 (7) Actual Amount Drawn by the Guaranteed Company (in thousand NTD): 143,066 (8) Reason for This New Endorsement Guarantee: The Company’s 100%-indirectly-owned grand-subsidiary, Hon Shen Precision Electric (Hubei) Co., Ltd., intends to establish financing arrangements with the Shenzhen Branch of South China Commercial Bank to meet working capital needs for production and business expansion. Hon Shen Hubei will apply for a short-term credit line from the bank, with the Company acting as the guarantor.

3. Collateral Provided by the Guaranteed Company: (1) Description: None (2) Value (in thousand NTD): 0

4. Latest Financial Statement of the Guaranteed Company: (1) Capital (in thousand NTD): 1,031,800 (2) Accumulated Profit/Loss (in thousand NTD): -591,105

5. Conditions and Date for Release from Endorsement Guarantee Liability: (1) Condition: Upon maturity of the loan agreement (2) Date: Upon maturity of the loan agreement

6. Total Endorsement Guarantee Limit (in thousand NTD): 2,478,952

7. Endorsement Guarantee Balance as of Factual Date (in thousand NTD): 1,951,659

8. Ratio of Endorsement Guarantee Balance to the Net Worth in the Company’s Latest Financial Statement as of Factual Date: 157.46%

9. Combined Ratio of Endorsement Guarantee, Long-Term Investment, and Fund Lending Balances to the Net Worth in the Company’s Latest Financial Statement as of Factual Date: 209.81%

10. Other Matters to be Disclosed: This matter was approved by the board resolution held on August 12, 2026.