Yi Guang Security Announces Acquisition of Right-of-Use Asset from Related Party Shin Kong Textile Co., Ltd.

1. Name and nature of the subject property (e.g., land located at Section XX, Subsection XX, North District, Taichung City): Shin Kong Textile Co., Ltd. Taoyuan Shin Kong International Financial Building: 3F-2, No. 205, Fuxing Road, Taoyuan District, Taoyuan City

2. Date of occurrence: August 10, 2026 ~ August 10, 2026

3. Board approval date: August 10, 2026

4. Other approval dates: Not applicable

5. Quantity of units (e.g., XX square meters, converted to XX ping), unit price, and total transaction amount: Unit quantity: Approximately 119 ping, with actual usable area of 80 ping after deducting balcony

Unit price: From March 1, 2027 to February 28, 2029: NT$600 per ping (exclusive of tax), monthly rent NT$48,000 (exclusive of tax) From March 1, 2029 to February 28, 2031: NT$630 per ping (exclusive of tax), monthly rent NT$50,400 (exclusive of tax) From March 1, 2031 to February 29, 2032: NT$662 per ping (exclusive of tax), monthly rent NT$52,960 (exclusive of tax)

Total rent amount: From March 1, 2027 to February 28, 2029: 24 installments, total NT$1,152,000 (exclusive of tax) From March 1, 2029 to February 28, 2031: 24 installments, total NT$1,209,600 (exclusive of tax) From March 1, 2031 to February 29, 2032: 12 installments, total NT$635,520 (exclusive of tax)

Right-of-use asset amount: NT$2,831,557

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted): Counterparty: Shin Kong Textile Co., Ltd. Relationship with the company: Related party

7. If the counterparty is a related party, state the reason for selecting them, the previous transferor, the relationship between the previous transferor and the company and counterparty, transfer date, and transfer amount: Reason for selecting related party: Based on overall cost and operational planning Previous transferor: Counterparty constructed on self-owned land (not applicable) Relationship: Not applicable Transfer date: Not applicable Transfer amount: Not applicable

8. If the asset’s owner was a related party of the company within the past five years, disclose the acquisition/disposal date, price, and relationship at the time: Acquisition date: December 1994 Acquisition price: Not applicable (self-built by counterparty) Relationship at the time: Not applicable

9. Estimated gain (or loss) on disposal (not applicable for asset acquisition) (if deferred, provide recognition details): Not applicable

10. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important clauses: Shin Kong Textile Co., Ltd., Taoyuan Shin Kong International Financial Building

Lease period: March 1, 2027 to February 29, 2032

Payment terms: Monthly payment of NT$48,000 (exclusive of tax)

Contractual restrictions: None

Other important clauses: None

11. Method of transaction determination (e.g., bidding, comparison, negotiation), reference basis for pricing, and decision-making unit: Transaction determination method: Negotiation based on market conditions

Pricing reference basis: Reference to surrounding office rental prices in the area

Decision-making unit: Board of Directors

12. Name of professional valuation firm or company and valuation amount: Not applicable

13. Name of professional appraiser: Not applicable

14. Appraiser’s license number: Not applicable

15. Whether the valuation report is for limited, specific, or special price: No or not applicable

16. Whether valuation report has not yet been obtained: No or not applicable

17. Reason for not obtaining valuation report: Not applicable

18. If there is a significant difference in valuation results, explain the reason and include auditor’s opinion: Not applicable

19. Name of accounting firm: Not applicable

20. Name of accountant: Not applicable

21. Accountant’s license number: Not applicable

22. Broker and brokerage fee: Not applicable

23. Specific purpose or use of acquisition or disposal: Based on overall cost and operational planning

24. Opinions of directors who objected to the transaction: None

25. Whether this transaction is with a related party: Yes

26. Date of supervisor approval or audit committee consent: August 10, 2026

27. Whether the transaction involves acquiring real estate or right-of-use asset from a related party: Yes

28. Valuation amount under Article 16 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies': Not applicable

29. Valuation amount under Article 17 if the Article 16 valuation is lower than transaction price: Not applicable

30. Previous date of material information disclosure for the same event: Not applicable

31. Other explanatory matters: None