Announcement on Pre-disclosure of Share Reduction by Shareholders and Concerted Actors Holding 5% or More Shares of Changzhou Changqing Technology Co., Ltd.

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Stock Code: 001324 Stock Abbreviation: Changqing Technology Announcement No.: 2026-002

Changzhou Changqing Technology Co., Ltd.

Announcement on the Pre-disclosure of Share Reduction by Shareholders Holding Over 5% and Their Concerted Parties

The shareholders holding over 5% of the shares, Changzhou Guorun No. 9 Enterprise Management Consulting Partnership (Limited Partnership) and Changzhou Coral Private Equity Fund Management Partnership (Limited Partnership) – Changzhou Guorun No. 9 Enterprise Management Consulting Partnership (Limited Partnership), guarantee that the information provided to the company is true, accurate, and complete, with no false records, misleading statements, or major omissions.

The company and all members of the board of directors guarantee that the content of this announcement is consistent with the information provided by the information disclosure obligors.

Special Reminder:

The shareholders holding over 5% of Changzhou Changqing Technology Co., Ltd. (hereinafter referred to as “the Company” or “Changqing Technology”)—Changzhou Guorun No. 9 Enterprise Management Consulting Partnership (Limited Partnership) (holding 6,624,800 shares, accounting for 4.80% of the total share capital, hereinafter “Guorun No. 9”) and Changzhou Coral Private Equity Fund Management Partnership (Limited Partnership) – Changzhou Guorun No. 9 Enterprise Management Consulting Partnership (Limited Partnership) (holding 6,584,800 shares, accounting for 4.77% of the total share capital, hereinafter “Changzhou Coral”)—plan to reduce their holdings of the company’s shares by no more than 4,130,232 shares (equivalent to 3.00% of the total share capital after excluding shares held in the company’s repurchase account) through centralized bidding and/or block trades within 15 trading days after this announcement is disclosed and for a continuous period of 90 calendar days.

The company recently received notices from some shareholders and their concerted parties regarding their share reduction plans. The relevant matters are hereby announced as follows:

1. Basic information of shareholders holding over 5% and their concerted parties

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2. Share reduction plan details for shareholders holding over 5% and their concerted parties

3. Reason for reduction: shareholders’ own capital needs;

4. Source of shares: shares held before the initial public offering;

5. Reduction period: within 15 trading days after this announcement is disclosed and for a continuous period of 90 calendar days (excluding periods prohibited by relevant laws and regulations);

6. Reduction method: centralized bidding and/or block trades;

7. Reduction price: determined based on the secondary market price and trading method at the time of reduction, in accordance with relevant laws, regulations, and commitments;

8. Reduction quantity:

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Note: As of the date of this announcement, Changzhou Changqing Technology Co., Ltd.'s repurchase dedicated securities account holds 325,600 shares.

If there are any corporate actions such as stock dividends, capital reserve to share capital conversions, or rights issues during the reduction period, the reduction quantity will be adjusted accordingly.

7. The aforementioned shareholders do not fall under the circumstances specified in Article 5 of the “Guidelines for Self-Regulatory Supervision of Listed Companies No. 18—Shareholders, Directors, and Senior Management’s Share Reduction” of the Shenzhen Stock Exchange.

8. Shareholders’ commitments and performance

(1) Guorun No. 9 and Changzhou Coral made the following commitments in the company’s “Initial Public Offering and Listing Announcement”:

1. Within 12 months from the date of listing of the company’s shares, they will not transfer or entrust others to manage the shares directly or indirectly held by the company/enterprise before the IPO and listing, nor will the company/enterprise buy back shares directly or indirectly held by the company/enterprise before the IPO and listing.

2. According to applicable laws, regulations, rules, normative documents, and relevant provisions of the China Securities Regulatory Commission and the Shenzhen Stock Exchange, if there are circumstances that prohibit share reduction, the company/enterprise commits not to reduce shares of Changqing Technology. After the lock-up period expires, the company/enterprise will reduce shares in accordance with applicable laws, regulations, rules, and the requirements of the CSRC and the Shenzhen Stock Exchange, and will not violate relevant restrictions. During the reduction process, the company/enterprise will fulfill necessary filing and announcement procedures in accordance with laws, regulations, and regulatory requirements. If the lock-up, share holding, or reduction commitments are inconsistent with the latest regulatory opinions of the CSRC and the Shenzhen Stock Exchange, the company/enterprise will make adjustments accordingly. After the lock-up period, reductions will be carried out in accordance with relevant regulations of the CSRC and the Shenzhen Stock Exchange.

During the commitment period, the entities have strictly fulfilled their commitments without violations. There are no violations related to this proposed reduction.

4. Risk warnings

(1) The shareholders planning to reduce their shares will decide whether to implement or partially implement the reduction plan based on their own circumstances, market conditions, and the company’s stock price. There is uncertainty regarding the timing and price of the reduction. The company will comply strictly with relevant regulations and disclose information timely.

(2) The shareholders planning to reduce shares are not the controlling shareholders or actual controllers of the company. The implementation of this reduction plan will not lead to a change in control or affect the company’s governance structure and ongoing operations.

(3) During the reduction period, the shareholders will strictly abide by laws and regulations including the “Securities Law of the People’s Republic of China,” “Interim Measures for the Management of Share Reduction by Shareholders of Listed Companies,” “Stock Listing Rules of the Shenzhen Stock Exchange,” “Self-Regulatory Guidelines for Listed Companies No. 1—Standard Operation of Main Board Listed Companies,” and “Self-Regulatory Guidelines for Listed Companies No. 18—Shareholders, Directors, and Senior Management’s Share Reduction,” among others.

Investors are advised to invest rationally and be aware of investment risks.

5. Documents for future reference

(1) The notice letter from shareholders regarding the share reduction plan.

This announcement is hereby made.

Changzhou Changqing Technology Co., Ltd.

Board of Directors

March 16, 2026