Shangwei Investment Holding Announces Name Change to Shangwei International Holding

Release Date: July 24, 2026 Statement Date: July 23, 2026 Statement Time: 7:00:03 Company Code: 3708 Company Name: Shangwei Investment Holding Subject: Announcement of company name change from 'Shangwei International Investment Holding Co., Ltd.' to 'Shangwei International Holding Co., Ltd.', effective from June 11, 2026, to September 10, 2026.

Applicable Clause: Clause 51 Factual Date: June 11, 2026

Details: 1. Factual Date: June 11, 2026 2. Company Name: Shangwei International Holding Co., Ltd. (formerly: Shangwei International Investment Holding Co., Ltd.) 3. Relationship with Company (please enter本公司or subsidiary):本公司 4. Cross-shareholding Ratio: Not applicable 5. Reasons: (1) Company name change approval date / factual date: June 11, 2026 (2) Company name change approval document number: MOEA Shou-Shang No. 11530084540 (3) Shareholders' meeting resolution date for name change: May 28, 2026 (4) Previous company name: Shangwei International Investment Holding Co., Ltd. (5) New company name: Shangwei International Holding Co., Ltd. (6) Previous company abbreviation: Shangwei Investment Holding (7) New company abbreviation: Shangwei Holding 6. Response Measures: None 7. Other Matters to be Disclosed: (1) The company received the Ministry of Economic Affairs' approval letter for registration change on June 11, 2026. (2) According to Article 45 of the Rules of Operation of Taiwan Stock Exchange Corporation, a three-month consecutive announcement is required after the name change. (3) The company's stock code remains unchanged; ordinary shares continue to be listed under '3708'.