Per Biotechnology-Chuang Announces Board Approval for Amendment of Company Articles of Incorporation to Change Par Value Per Share

1. Date of board resolution: 115/05/05 2. Original par value per share (NT$) and total issued shares: Original par value NT$10 per share; original total issued shares 65,580,050 shares 3. New par value per share (NT$) and estimated total shares: After change, par value NT$0.5 per share; after change, total issued shares 1,311,601,000 shares 4. Stock replacement schedule (1) Last trading day for old shares: Not applicable 5. Stock replacement schedule (2) Suspension period for trading old shares: Not applicable 6. Stock replacement schedule (3) Last book-entry date for old shares: Not applicable 7. Stock replacement schedule (4) Start date of suspension of transfer for old shares: Not applicable 8. Stock replacement schedule (5) End date of suspension of transfer for old shares: Not applicable 9. Stock replacement schedule (6) Record date for stock replacement: Not applicable 10. Stock replacement schedule (7) Share issuance date: Not applicable 11. Stock replacement schedule (8) New shares listing and trading date: Not applicable 12. Stock replacement schedule (9) Old shares delisting and trading termination date: Not applicable 13. Other matters to be specified: This case will be submitted to the 115th annual shareholders' meeting for approval, and then submitted to the competent authority for related registration procedures. The actual number of shares issued will be based on the announcement at the time of par value change and conversion.