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

Stock Code: 300631 Stock Abbreviation: Jiuwu Hi-Tech Announcement No.: 2026-040

Jiangsu Jiuwu Hi-Tech Co., Ltd.

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

Sponsor (Lead Underwriter): Guotai Haitong Securities Co., Ltd.

Special Notice

Jiangsu Jiuwu Hi-Tech Co., Ltd. (hereinafter referred to as "Jiuwu Hi-Tech," "the Company," or "the Issuer") and Guotai Haitong Securities Co., Ltd. (hereinafter referred to as "Guotai Haitong," "the Sponsor (Lead Underwriter)," or "the Lead Underwriter") have organized the issuance of convertible corporate bonds to non-specific qualified investors (hereinafter referred to as "Convertible Bonds" or "Jiuwu Convertible Bonds 02") in accordance with the Securities Law of the People's Republic of China, the Administrative Measures for the Registration of Securities Issuance by Listed Companies (CSRC Order No. 227), the Administrative Measures for Securities Issuance and Underwriting (CSRC Order No. 228), the Implementation Rules for Securities Issuance and Underwriting Business of Listed Companies on the Shenzhen Stock Exchange (2025 Revision) (Shenzhen Stock Listing [2025] No. 268), the Shenzhen Stock Exchange Self-Regulatory Guidelines for Listed Companies No. 15—Convertible Corporate Bonds (2025 Revision) (Shenzhen Stock Listing [2025] No. 223), and the Shenzhen Stock Exchange Self-Regulatory Guidelines for ChiNext Listed Companies No. 1—Business Handling (2026 Revision) (Shenzhen Stock Listing [2026] No. 135).

The Convertible Bonds issued this time will be preferentially placed to the original shareholders registered with the Shenzhen Branch of China Securities Depository and Clearing Corporation (hereinafter referred to as "CSDC Shenzhen Branch") after the market closes on the equity registration date (July 17, 2026, T-1 day). The balance after priority placement (including the portion waived by original shareholders) will be issued to public investors via the Shenzhen Stock Exchange (hereinafter referred to as "SZSE") trading system online.

The Company and all members of the Board of Directors guarantee that the information disclosed is true, accurate, and complete, and contains no false records, misleading statements, or material omissions.

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

Important reminders regarding the issuance process, subscription, payment, and handling of investor waivers are as follows:

1. The priority placement date for original shareholders and the online subscription date for this issuance are both July 20, 2026 (T day). Subscription hours are 9:15-11:30 and 13:00-15:00 on T day. When participating in priority placement on July 20, 2026 (T day), original shareholders must pay the full amount of funds for the convertible bonds within their priority placement quota. No subscription funds are required for online subscriptions of the balance remaining after priority placement by original shareholders and public investors.

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

3. Investors may only use one securities account to participate in the online subscription for the Convertible Bonds. If the same investor uses multiple securities accounts or the same securities account multiple times to participate in the subscription for the same Convertible Bonds, only the first subscription will be considered valid, and all other subscriptions will be invalid. Once confirmed by the SZSE trading system, the subscription cannot be revoked.

The principle for confirming that multiple securities accounts are held by the same investor is that the "Account Holder Name" and "Valid Identity Document Number" in the securities account registration data are identical. Enterprise annuity accounts and occupational annuity accounts with the same "Account Holder Name" and "Valid Identity Document Number" are counted as different investors.