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/Announcement on Interest Payment of "Zhengchuan Convertible Bonds" in 2026
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Announcement on Interest Payment of "Zhengchuan Convertible Bonds" in 2026

Shanghai Stock Exchange
2026/04/21

Stock code: 603976 Stock abbreviation: Zhengchuan Shares Announcement number: 2026-005 Convertible bond code: 113624 Convertible bond abbreviation: Zhengchuan convertible bonds

Chongqing Zhengchuan Pharmaceutical Packaging Materials Co., Ltd.

Announcement on the interest payment of "Zhengchuan Convertible Bonds" in 2026

The company's board of directors and all directors guarantee that the contents of this announcement do not contain any false records, misleading statements or major omissions, and assume legal responsibility for the authenticity, accuracy and completeness of its contents.

Important content reminder:

 Registration date of convertible bond interest payment claims: April 27, 2026

 Convertible bond ex-dividend date: April 28, 2026

 Convertible bond interest payment date: April 28, 2026

The convertible corporate bonds (hereinafter referred to as the "current bonds") issued by Chongqing Zhengchuan Pharmaceutical Packaging Materials Co., Ltd. (hereinafter referred to as the "Company") on April 28, 2021 will pay interest on April 28, 2026 for the period from April 28, 2025 to April 27, 2026. In accordance with the relevant provisions of the company's Prospectus for the Public Issuance of Convertible Corporate Bonds (hereinafter referred to as the "Prospectus"), the relevant matters are hereby announced as follows:

1. Basic situation of this bond

  1. Bond name: Chongqing Zhengchuan Pharmaceutical Packaging Materials Co., Ltd. Convertible Corporate Bonds

  2. Bond abbreviation: Zhengchuan Convertible Bond

  3. Bond code: 113624

  4. Securities type: corporate bonds convertible into company A shares

  5. Issuance scale: 405 million yuan

  6. Number of copies issued: 4.05 million

  7. Face value and issuance price: Each ticket has a face value of RMB 100 and is issued at face value.

  8. Bond term: 6 years from the date of issuance, from April 28, 2021 to April 2027

Ends on the 27th.

  1. Bond interest rates: 0.50% in the first year, 0.70% in the second year, 1.20% in the third year, 1.80% in the fourth year, 2.40% in the fifth year, and 3.00% in the sixth year.

  2. The period and method of principal and interest repayment: The convertible corporate bonds issued this time adopt an annual interest payment method, and the principal and the last year's interest will be returned upon maturity.

(1) Calculation of annual interest:

Annual interest refers to the current interest that holders of convertible corporate bonds can enjoy every year based on the total par amount of the convertible corporate bonds they hold from the first day of issuance of the convertible corporate bonds.

The calculation formula for annual interest is: I=B×i

I: refers to the annual interest amount;

B: Refers to the total par amount of convertible corporate bonds held by the holders of the convertible corporate bonds issued this time on the interest payment record date in the interest accrual year (hereinafter referred to as "the current year" or "each year");

i: refers to the current year’s coupon rate of convertible corporate bonds.

(2) Interest payment method

① This convertible corporate bond adopts an annual interest payment method, and the starting date of interest calculation is the first day of issuance of the convertible corporate bond. The tax payable on the interest income received by the convertible corporate bond holders shall be borne by the convertible corporate bond holders.

②Interest payment date: The annual interest payment date is the day of each full year from the first day of issuance of the convertible corporate bonds. If the day is a legal holiday or rest day, it will be postponed to the next working day, and no additional interest will be paid during the postponement period. There is one interest accrual year between two adjacent interest payment dates.

③ Interest-paying creditor's rights registration date: The annual interest-paying creditor's rights registration date is the trading day before the annual interest payment date. The company will pay the current year's interest within five trading days after the annual interest payment date. For convertible corporate bonds that are converted into stocks before the interest-paying claim registration date (including the interest-paying claim registration date), the company will no longer pay interest to its holders for the current interest-bearing year and subsequent interest-bearing years.

  1. Conversion period: The conversion period of the convertible corporate bonds issued this time starts from the first trading day 6 months after the end of the issuance of the convertible corporate bonds (May 7, 2021, that is, the date when the raised funds are transferred to the company's account) and ends on the maturity date of the convertible corporate bonds, that is, from November 8, 2021 to April 27, 2027.

  2. Conversion price: The initial conversion price is 46.69 yuan/share, and the latest conversion price is 20.07 yuan/share.

  3. Credit rating of convertible bonds: The credit rating of this convertible corporate bond is "A+", with a "stable" rating outlook.

  4. Credit rating agency: United Credit Rating Co., Ltd.

  5. Guarantee situation: The convertible corporate bonds issued this time are jointly and severally guaranteed by the company’s controlling shareholder, Chongqing Zhengchuan Investment Management Co., Ltd. The scope of the guarantee is 100% of the principal and interest, liquidated damages, damages and reasonable expenses for realizing the creditor's rights of the convertible corporate bonds issued by the company with the approval of the China Securities Regulatory Commission. The beneficiaries of the guarantee are all bondholders.

  6. Registration, custody, entrusted bond dividend distribution and redemption institution: China Securities Depository and Clearing Co., Ltd. Shanghai Branch.

2. This interest payment plan

According to the agreement in the "Prospectus", this interest payment is the fifth year of interest payment on the company's convertible bonds, and the interest calculation period is from April 28, 2025 to April 27, 2026. The coupon rate for this interest-bearing year is 2.40% (tax included), that is, the interest redemption amount of each convertible bond with a face value of RMB 100 is RMB 2.40 (tax included).

3. The registration date of this interest payment claim, the ex-dividend date and the interest payment date

  1. Registration date for convertible bond interest payment claims: April 27, 2026

  2. Ex-dividend date of convertible bonds: April 28, 2026

  3. Convertible bond interest payment date: April 28, 2026

4. Interest payment objects

The interest payment targets this time are all "Zhengchuan Convertible Bond" holders registered with the Shanghai Branch of China Securities Depository and Clearing Co., Ltd. after the Shanghai Stock Exchange closes on April 27, 2026.

5. Interest payment method

  1. The company signed an agency bond redemption and interest redemption agreement with the Shanghai Branch of China Securities Depository and Clearing Co., Ltd., and entrusted the Shanghai Branch of China Securities Depository and Clearing Co., Ltd. to carry out bond redemption and interest redemption. If the company fails to transfer the bond redemption and interest redemption funds on time and in full to the bank account designated by the Shanghai Branch of China Securities Depository and Clearing Co., Ltd., the Shanghai Branch of China Securities Depository and Clearing Co., Ltd. will terminate the agency bond redemption and interest redemption services in accordance with the agreement, and the company will be responsible for subsequent redemption and interest redemption work. Relevant implementation matters shall be subject to the company's announcement. The company will transfer the interest of this bond in full to the bank account designated by the Shanghai Branch of China Securities Depository and Clearing Co., Ltd. two trading days before the interest payment date of this period.

  2. After receiving the payment, the Shanghai Branch of China Securities Depository and Clearing Co., Ltd. will transfer the bond interest to the corresponding redemption institution (a securities company or other institution recognized by the Shanghai Branch of China Securities Depository and Clearing Co., Ltd.) through the capital settlement system, and investors will receive the bond interest from the redemption institution.

6. Instructions on investors’ payment of corporate bond interest income tax

  1. According to the provisions of the "Individual Income Tax Law of the People's Republic of China" and other relevant tax regulations and documents, individual investors in this bond (including securities investment funds) shall pay personal income tax on bond interest income. The tax rate is 20% of the interest amount, that is, the interest redemption amount of each convertible bond with a face value of RMB 100 is RMB 2.40 (before tax), and the actual interest distributed is RMB 1.92 (after tax). The personal income tax on the current bond interest will be uniformly withheld and paid by each redemption institution and paid directly to the tax department where each redemption institution is located. If each interest-paying outlet fails to perform the withholding and payment obligations of the above-mentioned personal income tax on bond interest, the resulting legal liability shall be borne by each interest-paying outlet.

  2. According to the provisions of the "Enterprise Income Tax Law of the People's Republic of China" and other relevant tax regulations and documents, for resident enterprises holding convertible bonds, the bond interest income tax shall be paid by themselves, that is, the actual distribution amount of each convertible bond with a face value of RMB 100 is RMB 2.40 (tax included).

  3. For qualified foreign institutional investors, RMB overseas institutional investors and other non-resident enterprises holding current bonds (the meaning is the same as the Enterprise Income Tax Law of the People's Republic of China), according to the "Announcement on the Continuation of the Corporate Income Tax and Value-Added Tax Policies for Overseas Institutional Investment in the Domestic Bond Market" issued by the Ministry of Finance and the State Administration of Taxation (Announcement No. 5 of 2026 of the Ministry of Finance and the State Administration of Taxation), from January 1, 2026 to December 31, 2027 As of this date, corporate income tax and value-added tax are temporarily exempted from bond interest income obtained by foreign institutions investing in the domestic bond market. Therefore, the current bond interest obtained by bond holders of non-resident enterprises (including QFII and RQFII) is exempt from corporate income tax, that is, the actual distribution amount of each convertible bond with a face value of RMB 100 is RMB 2.40 (tax included). The scope of the above-mentioned temporary exemption from corporate income tax does not include bond interest obtained by institutions and places established by overseas institutions in China that are actually connected with such institutions and places.

7. Relevant institutions and contact information

  1. Issuer: Chongqing Zhengchuan Pharmaceutical Packaging Materials Co., Ltd.

Address: Zhengchuan Glass Industrial Park, Longfengqiao Street, Beibei District, Chongqing City

Contact Department: Securities Department

Contact number: 023-68349898

  1. Sponsor: Shenwan Hongyuan Securities Underwriting and Sponsoring Co., Ltd. Address: Third Floor, No. 989 Changle Road, Xuhui District, Shanghai

Contact person: Xi Yiyu

Contact number: 021-33389888

  1. Custodian: Shanghai Branch of China Securities Depository and Clearing Co., Ltd. Address: No. 188 Yanggao South Road, Pudong New District, Shanghai

Contact number: 4008058058

Announcement is hereby made.

Board of Directors of Chongqing Zhengchuan Pharmaceutical Packaging Materials Co., Ltd.

April 21, 2026