Suzhou Spring and Autumn Electronic Technology Co., Ltd. Announcement on the Results of Convertible Bond Conversion and Share Changes

Stock Code: 603890 Stock Short Name: Chunqiu Electronics Announcement No.: 2026-016

Bond Code: 113667 Bond Short Name: Chun23 Convertible Bond

Suzhou Chunqiu Electronics Technology Co., Ltd.

Announcement on the Results of Conversion of the Convertible Bond into Shares and Changes in Share Capital

The board of directors of the Company and all its directors hereby guarantee that there are no false records, misleading statements or material omissions in the contents of this announcement, and assume legal responsibility for the truthfulness, accuracy, and completeness of the contents.

Key Points:

● Cumulative conversion status: As of March 31, 2026, a total of RMB 112,000 of “Chun23 Convertible Bond” has been converted into the Company’s A-share stock, with a cumulative number of shares converted of 10,981 shares, accounting for 0.0025% of the Company’s total issued shares prior to the conversion of “Chun23 Convertible Bond”;

● Unconverted convertible bond status: As of March 31, 2026, the amount of “Chun23 Convertible Bond” not yet converted is RMB 569,888,000, accounting for 99.9804% of the total issuance amount of “Chun23 Convertible Bond”.

● Conversion status during the current quarter: From January 1, 2026 to March 31, 2026, the amount converted from “Chun23 Convertible Bond” was RMB 5,000, and the number of shares formed as a result of conversion was 491 shares.

I. Issuance and Listing of the Convertible Bond

Approved by the China Securities Regulatory Commission with the document No. CSRC License [2022] 2164, the Company issued 5.7 million convertible corporate bonds to unspecified parties on March 17, 2023. Each bond has a par value of RMB 100, with a total issuance amount of RMB 570 million. The term is 6 years, from March 17, 2023 to March 16, 2029. The coupon rates are 0.30% for the first year, 0.50% for the second year, 1.00% for the third year, 1.50% for the fourth year, 2.00% for the fifth year, and 2.50% for the sixth year.

Pursuant to the approval from the Shanghai Stock Exchange’s self-regulatory regulatory decision letter No. [2023] 64, the Company’s RMB 570 million convertible corporate bonds have been listed and traded on the Shanghai Stock Exchange from April 11, 2023. The bond short name is “Chun23 Convertible Bond,” and the bond code is “113667”.

In accordance with the relevant provisions and the Company’s “Offering Memorandum for Convertible Bonds Issued to Unspecified Parties,” the “Chun23 Convertible Bond” issued in this offering may be converted into the Company’s shares from September 25, 2023. The conversion period is from September 25, 2023 to March 16, 2029. The initial conversion price is RMB 10.40 per share.

On May 18, 2023, the Company held the 2022 annual general meeting of shareholders, which considered and approved the proposal on “2022 Profit Distribution Plan,” under which, using the total share capital on the equity record date for the distribution of dividends, cash dividends of RMB 1.00 per 10 shares (including tax) would be distributed to all shareholders, for a total cash dividend distribution of RMB 42,990,248.60 (including tax). According to the relevant provisions in the “Offering Memorandum for Convertible Bonds Issued to Unspecified Parties,” with effect from June 20, 2023, the conversion price of “Chun23 Convertible Bond” was adjusted from RMB 10.40 per share to RMB 10.30 per share.

On May 13, 2025, the Company held the 2024 annual general meeting of shareholders, which considered and approved the proposal on “2024 Profit Distribution Plan,” under which, using the total share capital on the equity record date for the distribution of dividends, cash dividends of RMB 1.50 per 10 shares (including tax) would be distributed to all shareholders, for a total cash dividend distribution of RMB 64,489,356.90 (including tax). According to the relevant provisions in the “Offering Memorandum for Convertible Bonds Issued to Unspecified Parties,” with effect from June 19, 2025, the conversion price of “Chun23 Convertible Bond” was adjusted from RMB 10.30 per share to RMB 10.15 per share.

II. Conversion of the Convertible Bond This Time

From January 1, 2026 to March 31, 2026, the conversion amount of “Chun23 Convertible Bond” was RMB 5,000, and the number of shares formed due to conversion was 491 shares. As of March 31, 2026, a cumulative RMB 112,000 of “Chun23 Convertible Bond” has been converted into the Company’s A-share stock, with a cumulative number of shares converted of 10,981 shares, accounting for 0.0025% of the Company’s total issued shares prior to the conversion of “Chun23 Convertible Bond”. As of March 31, 2026, the amount of “Chun23 Convertible Bond” not yet converted is RMB 569,888,000, accounting for 99.9804% of the total issuance amount of “Chun23 Convertible Bond”.

III. Changes in Share Capital

After the conversion of the convertible bond, the Company’s share capital structure changes are as follows:

Unit: Shares

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IV. Other Matters

Contact department: Securities Department of the Company

Telephone: 0512-57445099

This announcement is hereby made.

Board of Directors of Suzhou Chunqiu Electronics Technology Co., Ltd.

April 2, 2026