Anhui Wanlang Magnetic Plastic Co., Ltd. Announcement on Providing Guarantees for Its Subsidiaries

Securities Code: 603150 Securities Abbreviation: Wanlang Magnetic Plastic Announcement Number: 2026-019

Anhui Wanlang Magnetic Plastic Co., Ltd.

Announcement on Providing Guarantees for Wholly-Owned Subsidiaries

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 significant omissions, and bear legal responsibility for the authenticity, accuracy, and completeness of its contents.

Important Content Reminder:

● Guarantee Object and Basic Situation

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● Cumulative Guarantee Situation

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I. Overview of Guarantee Situation

(1) Basic Situation of the Guarantee

1. Anhui Wanlang Magnetic Plastic Co., Ltd. (hereinafter referred to as “the Company”) signed a “Maximum Amount Guarantee Contract” (Contract No.: (2026) Xinhe Yinzuibaozi No. 2673267A0142-a) with CITIC Bank on March 18, 2026, to provide a joint liability guarantee for the operating development funding needs of its subsidiary Tongtai Intelligent Technology (Thailand) Co., Ltd. (hereinafter referred to as “Tongtai Intelligent”). The guarantee is for loans applied for by Tongtai Intelligent from CITIC Bank Co., Ltd. Hefei Branch (hereinafter referred to as “CITIC Bank”) from March 18, 2026, to March 18, 2031. On March 25, 2026, Tongtai Intelligent signed a “Renminbi and Foreign Currency Working Capital Loan Contract” (Contract No.: (2026) Xinhe Yin Dai Zi No. 2673267D0298) with CITIC Bank, with a loan amount of RMB 20 million. The bank credit guarantee amount provided by the Company for Tongtai Intelligent is RMB 20 million. Other shareholders of Tongtai Intelligent, Foshan Taiyue Intelligent Technology Co., Ltd., signed a “Counter Guarantee Agreement” with the Company, providing counter guarantees to the Company based on their equity ratio in Tongtai Intelligent.

2. To ensure the operating development funding needs of its subsidiary Hefei Hongmai Plastic Products Co., Ltd. (hereinafter referred to as “Hefei Hongmai”), the Company signed a “Maximum Amount Guarantee Contract” (High Guarantee No. 202603016) with Huishang Bank Co., Ltd. Hefei Hezuohua Road Branch (hereinafter referred to as “Huishang Bank”) on March 26, 2026, providing a guarantee for the loans applied for by Hefei Hongmai from Huishang Bank from March 26, 2026, to March 26, 2031. The maximum principal balance of the debt guaranteed by the Company under the “Maximum Amount Guarantee Contract” is RMB 20 million. On March 26, 2026, Hefei Hongmai signed a “Working Capital Loan Contract” (Contract No.: Liu Dai Zi No. 202603016) with Huishang Bank, with a loan amount of RMB 20 million. The guarantee amount provided by the Company for Hefei Hongmai is RMB 20 million.

After the occurrence of the above two guarantees, the Company’s total guarantee balance for its controlling subsidiaries is RMB 229,738,724 (including this guarantee), with an unused guarantee limit of RMB 1,572,261,276.

(2) Internal Decision-Making Procedures

The Company held the second meeting of the fourth board of directors on January 27, 2026, and the first extraordinary shareholders’ meeting of 2026 on February 12, 2026, to review and approve the “Proposal on the Estimated External Guarantee Amount for the Company and its Controlling Subsidiaries in 2026,” agreeing that the Company and its controlling subsidiaries would provide a total guarantee not exceeding RMB 1,802,000,000 for the companies within the consolidated scope for the year 2026, with the validity period of the guarantee limit being no more than 12 months from the date of approval by the shareholders’ meeting. Within the validity period of the guarantee limit, guarantees provided by the Company will be signed by the chairman or the corresponding legal representative of the Company regarding all legal documents related to the specific guarantee, without requiring further review by the board of directors or shareholders’ meeting for each specific guarantee. This guarantee matter falls within the approved guarantee limit by the above board of directors and shareholders’ meetings and does not require further review procedures.

II. Basic Situation of the Guaranteed Parties

(1) Basic Situation of Tongtai Intelligent

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(2) Basic Situation of Hefei Hongmai

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III. Main Contents of the Guarantee Agreement

(1) Tongtai Intelligent

1. Guarantee Agreement

(1) Guarantor: Anhui Wanlang Magnetic Plastic Co., Ltd.

(2) Creditor: CITIC Bank Co., Ltd. Hefei Branch

(3) Guarantee Method: Joint Liability Guarantee

(4) The creditor’s rights guaranteed under this contract refer to the rights enjoyed by the creditor based on the main contract signed between the debtor and the creditor during the period from March 18, 2026, to March 18, 2031 (including the starting date and expiration date of the period), which includes a series of creditor’s rights (including debt restructuring business contracts such as refinancing, extension, modification of repayment plans, etc.).

(5) Guarantee Scope: The scope of this guarantee includes the principal debt, interest, penalty interest, compound interest, liquidated damages, compensation for damages, interest on debts during the delayed performance period, delay performance fees, costs incurred to realize creditor’s rights (including but not limited to litigation fees, arbitration fees, attorney fees, travel expenses, evaluation fees, transfer fees, preservation fees, announcement fees, notarization fees, translation fees, execution fees, preservation insurance fees, etc.), and all other payable fees.

(6) Guarantee Period: The guarantee period under this contract is three years from the date of expiration of the principal debt under the main contract, that is, three years from the expiration date of the debtor’s performance period as agreed in the specific business contract. The guarantee period for each specific business contract is calculated separately.

2. Counter Guarantee Agreement

(1) Party A (Guarantor): Anhui Wanlang Magnetic Plastic Co., Ltd.

(2) Party B (Borrower): Tongtai Intelligent Technology (Thailand) Co., Ltd.

(3) Party C (Counter Guarantor): Foshan Taiyue Intelligent Technology Co., Ltd.

(4) Scope of Counter Guarantee by Party C: Party C shall bear the responsibility for the payments made by Party A to the creditor for this guarantee, including but not limited to principal, interest (including overdue penalty interest and compound interest), liquidated damages, compensation, and the costs incurred by the creditor to realize the creditor’s rights (including but not limited to litigation fees, arbitration fees, attorney fees, property preservation fees, etc.), as well as the costs incurred by Party A in fulfilling its guarantee obligations, proportionate to Party C’s equity ratio in Party B (49%).

(5) Counter Guarantee Period: From the date of signing this agreement until five years after Party A assumes guarantee responsibilities.

(2) Hefei Hongmai

1. Guarantee Agreement

(1) Guarantor: Anhui Wanlang Magnetic Plastic Co., Ltd.

(2) Creditor: Huishang Bank Co., Ltd. Hefei Hezuohua Road Branch

(3) Guarantee Method: Joint Liability Guarantee

(4) The maximum principal balance of the creditor’s rights guaranteed under this contract is: Currency: RMB, (in words) Twenty Million Yuan, in figures (20000000.00)

(5) The scope of the guarantee includes: If the main creditor’s rights specified in this contract are determined to belong to the guaranteed main creditor’s rights upon the expiration date specified in Article 2 of this contract, then the interest (including interest, compound interest, penalty interest), liquidated damages, compensation for damages, costs to realize creditor’s rights (including but not limited to litigation fees, attorney fees, notarization fees, execution fees, etc.), losses incurred to the creditor due to the debtor’s default, and all other payable fees, etc., also belong to the guaranteed creditor’s rights, with the specific amount determined at the time of payment. The sum of the amounts determined under the above two clauses is the maximum amount of creditor’s rights guaranteed under this contract.

(6) Guarantee Period: The guarantee period under this contract is calculated separately for each single credit business handled by Party B as the debtor, that is, three years from the expiration date of the debt performance period for each single credit business.

IV. Necessity and Reasonableness of the Guarantee

This guarantee matter is a joint liability guarantee provided by the Company for its wholly-owned and controlling subsidiaries, within the limit approved by the shareholders’ meeting. The guaranteed parties are operating normally, and the guarantee risks are controllable. The Company’s provision of guarantees for the guaranteed parties will help the sustainable development of the guaranteed parties’ business operations. This guarantee will not affect the Company’s ongoing operational capability, nor will it harm the interests of the Company and the broad investors, especially small and medium investors.

V. Board of Directors’ Opinions

The Company held the second meeting of the fourth board of directors on January 27, 2026, where the board approved the provision of a total guarantee not exceeding RMB 1,802,000,000 by the Company and its controlling subsidiaries for the year 2026. The validity period of the guarantee limit is no more than 12 months from the date of approval by the first extraordinary shareholders’ meeting of 2026.

VI. Cumulative Number of External Guarantees and Number of Overdue Guarantees

The total estimated external guarantee amount for the Company and its controlling subsidiaries in 2026 is RMB 1,802,000,000. After this guarantee occurs, the balance of external guarantees provided by the Company and its controlling subsidiaries is RMB 229,738,724 (including this guarantee), accounting for 14.47% of the Company’s most recent audited net assets, with an unused guarantee limit of RMB 1,572,261,276.

The Company and its controlling subsidiaries have no overdue guarantee amounts, and there are no violations of guarantees or other external guarantees.

This is hereby announced.

Board of Directors of Anhui Wanlang Magnetic Plastic Co., Ltd.

March 27, 2026

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