Announcement on the Issuance of Convertible Corporate Bonds to Non-Specific Qualified Investors

Stock Code: 300453 Stock Abbreviation: Sanxin Medtec Announcement No.: 2026-047

Jiangxi Sanxin Medtec Co., Ltd.

Announcement on the Issuance of Convertible Corporate Bonds to Non-Specific Qualified Investors

Sponsor (Lead Underwriter): GF Securities Co., Ltd.

Special Notice

Jiangxi Sanxin Medtec Co., Ltd. (hereinafter referred to as "Sanxin Medtec", the "Issuer", or the "Company") and GF Securities Co., Ltd. (hereinafter referred to as "GF Securities" or the "Sponsor (Lead Underwriter)") are organizing and implementing this issuance of convertible corporate bonds to non-specific qualified investors (hereinafter referred to as "Convertible Bonds", "Convertible Corporate Bonds", or "Sanxin Convertible Bonds") in accordance with the Securities Law of the People's Republic of China, the Administrative Measures for the Issuance and Underwriting of Securities (CSRC Order No. 228), the Administrative Measures for the Registration of Securities Issuance by Listed Companies (CSRC Order No. 227), the Implementation Rules for Securities Issuance and Underwriting Business of Listed Companies on the Shenzhen Stock Exchange (2025 Revision) (Shenzhen Stock Issuance [2025] No. 268), the Guidelines for Self-Regulation of Listed Companies on the Shenzhen Stock Exchange No. 15 — Convertible Corporate Bonds (2025 Revision) (Shenzhen Stock Issuance [2025] No. 223), and the Guidelines for Self-Regulation of Listed Companies on the ChiNext Market of the Shenzhen Stock Exchange No. 1 — Business Handling (2026 Revision) (Shenzhen Stock Issuance [2026] No. 135).

The Convertible Bonds issued this time will be preferentially allocated to original shareholders registered with the Shenzhen Branch of China Securities Depository and Clearing Corporation (hereinafter referred to as "CSDC Shenzhen Branch") after the close of the market on the equity registration date (August 3, 2026, T-1 day). The balance after priority allocation (including the portion waived by original shareholders) will be issued to the general public through the trading system of the Shenzhen Stock Exchange (hereinafter referred to as "SZSE") (hereinafter referred to as "Online Issuance").

Investors participating in the online subscription should carefully read this announcement and the relevant regulations published on the SZSE website (www.szse.cn).

Important Notes on Issuance Process, Subscription, Payment, and Handling of Abandoned Subscriptions

1. The priority allocation date for original shareholders and the online subscription date for this convertible bond issuance are both August 4, 2026 (T-day). Online subscription hours are 9:15-11:30 and 13:00-15:00 on T-day. When participating in priority allocation, original shareholders must pay the full amount of funds for the quantity of convertible bonds within their priority allocation quota. Original shareholders and public investors do not need to pay subscription funds when participating in the online subscription for the balance after priority allocation.

2. Investors should reasonably determine the subscription amount based on industry regulatory requirements and their corresponding asset or capital scale, and must not subscribe beyond their asset or capital scale. The Sponsor (Lead Underwriter) has the right to deem a subscription invalid if it discovers that an investor has not complied with industry regulatory requirements or has subscribed beyond their asset or capital scale. Investors must express their subscription intent independently and may not provide a general authorization to a securities company to subscribe on their behalf.

3. Investors may only use one securities account to participate in the online subscription of convertible bonds. If the same investor uses multiple securities accounts to participate in the subscription of the same convertible bond, or uses the same securities account to participate multiple times, only the first subscription will be considered valid, and all subsequent subscriptions will be invalid. Once confirmed by the SZSE trading system, a subscription cannot be withdrawn.