Guosen Securities Co., Ltd. 2026 Public Offering of Corporate Bonds to Professional Investors (Phase V) Announcement

Guosen Securities Co., Ltd.

2026 Public Offering of Corporate Bonds to Professional Investors (Phase V)

Announcement

Issuer

Lead Underwriter/Bookrunner/Trustee Manager

China Galaxy Securities Co., Ltd.

Address: Building 1, No. 8 Xiying Street, Fengtai District, Beijing, Floors 7-18, Unit 101

Joint Lead Underwriters

China Securities Co., Ltd.

Address: Building 4, No. 66 Anli Road, Chaoyang District, Beijing

CITIC Securities Company Limited

Address: Block North, Excellence Times Plaza (Phase II), No. 8 Central Road, Futian District, Shenzhen, Guangdong Province

Guotai Haitong Securities Co., Ltd.

Address: No. 618, Shangcheng Road, China (Shanghai) Pilot Free Trade Zone

SDIC Securities Co., Ltd.

Address: Anxin Financial Building, No. 119 Fuhua 1st Road, Futian Street, Futian District, Shenzhen

Date of Signing: July 2026

The Company and its directors and senior management guarantee the truthfulness, accuracy, and completeness of the information disclosed in this announcement and shall bear joint and several liability for any false representations or material omissions.

Important Notes

1. Guosen Securities Co., Ltd. (hereinafter referred to as the "Issuer" or the "Company") obtained approval from the China Securities Regulatory Commission (CSRC) on December 22, 2025, with document number [2025]2882, to publicly issue corporate bonds with a total face value not exceeding RMB 30 billion (hereinafter referred to as the "Bonds") to professional investors.

The Issuer is issuing the Bonds in phases. The 2026 Guosen Securities Co., Ltd. Public Offering of Corporate Bonds to Professional Investors (Phase V) (hereinafter referred to as the "Current Bonds") is the fifth phase of the Bonds, with a total issuance size not exceeding RMB 6 billion (including RMB 6 billion). The Current Bonds are issued in two tranches. Tranche I is named Guosen Securities Co., Ltd. 2026 Public Offering of Corporate Bonds to Professional Investors (Phase V) (Tranche I), with the bond abbreviation "26 Guosen 14". Tranche II is named Guosen Securities Co., Ltd. 2026 Public Offering of Corporate Bonds to Professional Investors (Phase V) (Tranche II), with the bond abbreviation "26 Guosen 15".

The Current Bonds offer an option for inter-tranche allocation adjustment. The allocation between tranches can be adjusted without limit. The Issuer and the lead underwriters will, based on the subscription situation of the Current Bonds, and within the total issuance size, jointly decide whether to exercise the inter-tranche allocation adjustment option, which means reducing the issuance size of one tranche and increasing the issuance size of the other tranche by the same amount. The maximum issuance size for a single tranche will not exceed 100% of its maximum issuance size.

1. The face value of each Current Bond is RMB 100. The issuance size does not exceed 60 million units, and the issuance price is RMB 100 per unit.

2. In accordance with the "Securities Law" and other relevant regulations, the Current Bonds are exclusively issued to professional institutional investors. Retail investors and individual investors among professional investors are not permitted to subscribe. After listing, the Bonds will be subject to investor suitability management, and trading will be limited to professional institutional investors. Any subscription or purchase by retail investors and individual investors among professional investors will be invalid.

3. China Chengxin International Credit Rating Co., Ltd. has rated the Issuer's long-term主体 (entity) credit rating as AAA with a stable outlook, and the credit rating of the Current Bonds as AAA.