Guangdong Tianyu Semiconductor Co., Ltd. (TIANYU SEMI) disclosed that it repurchased 30,350 H-shares on 13 October 2026 via on-market transactions on the Hong Kong Stock Exchange.

The shares were bought at prices ranging between HKD 48.70 and HKD 49.98, translating into a volume-weighted average cost of HKD 49.40 per share and an aggregate consideration of HKD 1.50 million.

Following the transaction: • Issued shares outstanding (excluding treasury shares) fell by 0.052 % to 58.39 million. • Treasury shares increased from 565,150 to 595,500. • Total issued shares remained unchanged at 58.99 million.

The buyback was executed under the repurchase mandate approved on 19 May 2026, which allows repurchases of up to 5.90 million shares. Including the latest transaction, TIANYU SEMI has repurchased 595,500 shares, representing 1.01 % of the company’s issued share capital as at the mandate date.

A 30-day moratorium on new share issues or treasury-share sales is now in effect until 12 November 2026, in accordance with Hong Kong Stock Exchange regulations.