TONG HSING ELECTRONIC IND., LTD.

1.Date of occurrence of the event:2026/05/21
2.Company name:TONG HSING ELECTRONIC INDUSTRIES ,LTD.
3.Relationship with the Company (please enter ”the company itself” or ”subsidiaries”):

   the company itself
4.Reciprocal shareholding percentage:N/A
5.Cause of occurrence:
   Correction of the Company's Derivatives Trading for March 2026
6.Information items/ statements to be corrected:

   Derivatives Trading
7.Amounts/ contents/ number of page to be corrected:
   Hybrid Contracts (including hybrid instruments designated as at fair value through profit or loss)
   Total Notional Amount of Outstanding Contracts: 3,209,950
   Fair Value of Outstanding Contracts: 9,993
   Unrealized Gains (Losses) Recognized for the Current Year on Outstanding Contracts: 9,993
8.Amounts/ contents/ number of page after correction:
   Hybrid Contracts (including hybrid instruments designated as at fair value through profit or loss)
   Total Notional Amount of Outstanding Contracts: 3,209,955
   Fair Value of Outstanding Contracts: 4,863
   Unrealized Gains (Losses) Recognized for the Current Year on Outstanding Contracts: 4,863
9.Countermeasures:The corrected information will be re-uploaded and updated onto the Market

   Observation Post System (MOPS).
10.Any other matters that need to be specified:None.