Dalian Bai'ao Chemical Co., Ltd. Announcement on Share Pledge by Controlling Shareholder

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Stock Code: 603360 Stock Abbreviation: Baiao Chemical Announcement No.: 2026-023

Dalian Baiao Chemical Co., Ltd.

Announcement on the Pledge of Shares by the Controlling Shareholder

The Board of Directors of the Company and all directors guarantee that the content of this announcement does not contain any false records, misleading statements, or major omissions, and bear legal responsibility for the truthfulness, accuracy, and completeness of its content.

Important Content Reminder

● Dalian Baiao Chemical Co., Ltd. (hereinafter referred to as the “Company”) has a controlling shareholder, Dalian Tongyun Investment Co., Ltd. (hereinafter referred to as “Tongyun Investment”), which holds a total of 211,581,520 shares of the Company, accounting for 29.96% of the total share capital of the Company. As of the date of this announcement, the total number of pledged shares by Tongyun Investment is 122,840,000 shares, accounting for 58.06% of the shares it holds in the Company and 17.39% of the total share capital of the Company.

I. Current Pledge of Shares

The Company has recently received a notice from the controlling shareholder Tongyun Investment, indicating that on March 25, 2026, and March 26, 2026, it pledged 16,360,000 shares and 17,000,000 shares of the Company to Tibet Trust Co., Ltd. and Industrial Securities Co., Ltd., respectively. The specific situation is as follows:

1. Basic Situation of This Pledge of Shares

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Note 1: The repurchase transaction dates for this stock pledge repurchase transaction are March 27, 2027, and March 26, 2027, respectively, and the pledge expiration date shall be subject to the actual date of processing the pledge release registration.

Note 2: The discrepancy between the total numbers in this announcement and the sum of the detailed numbers is due to rounding.

2. The pledged shares this time have not been used as collateral or for other guarantee purposes such as major asset restructuring performance compensation.

3. Cumulative Pledged Shares of the Shareholder

As of the date of this announcement, the cumulative pledged shares of Tongyun Investment are as follows:

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II. Pledge Situation of Controlling Shareholder

1. Tongyun Investment will have 38,480,000 shares of its pledged shares maturing within the next six months, accounting for 18.19% of its shares in the Company and 5.45% of the total shares of the Company, with a corresponding financing balance of 30 million yuan; within the next year, 84,360,000 shares will mature, accounting for 39.87% of its shares in the Company and 11.95% of the total shares of the Company, with a corresponding financing balance of 55.256 million yuan. As of the date of this announcement, Tongyun Investment has a good credit status and possesses the corresponding repayment ability, planning to use its own funds and self-raised funds as the source of repayment.

2. Tongyun Investment does not have any non-operating fund occupation, illegal guarantees, related party transactions, or other situations that harm the interests of the Company.

3. The pledge of Tongyun Investment’s shares will not have a significant impact on the Company’s operational activities and corporate governance. If a warning or liquidation risk is triggered in the future, Tongyun Investment will take measures including supplemental pledges and early repayments to mitigate risks.

III. Other Matters

The Company will continue to pay attention to the pledge and release of the shares held by the shareholders and strictly comply with relevant regulations, fulfilling information disclosure obligations in a timely manner. Investors are advised to pay attention to investment risks.

This announcement is hereby made.

Board of Directors of Dalian Baiao Chemical Co., Ltd.

March 28, 2026

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