Wuhu Bethel Automotive Safety Systems Co., Ltd. Announcement on Using Part of Idle Raised Funds for Cash Management and Partial Redemption of Cash Management Products

Stock Code: 603596 Stock Abbreviation: Bertoli Announcement No.: 2026-012

Convertible Bond Code: 113696 Convertible Bond Abbreviation: Bertoli 25 Convertible Bond

Wuhu Bertoli Automotive Safety Systems Co., Ltd.

Announcement on Using Part of Idle Raised Funds for Cash Management and Redemption of Part of Cash Management Products

The company’s board of directors and all directors guarantee that the content of this announcement is free of any false records, misleading statements, or major omissions, and assume legal responsibility for its authenticity, accuracy, and completeness.

Key Content Highlights:

● Progress of Cash Management Products

1. Progress of this cash management product:

（1）Bank Structured Deposits

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2. Redemption of part of cash management products:

（1）Bank Large-denomination Certificates of Deposit

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● Approved Procedures

Wuhu Bertoli Automotive Safety Systems Co., Ltd. (hereinafter referred to as “the Company”) held the 9th meeting of the 4th Board of Directors and the 9th meeting of the 4th Supervisory Committee on July 30, 2025, and approved the “Proposal on Using Part of Temporarily Idle Raised Funds for Cash Management,” agreeing that the company, without affecting the construction of raised fund projects and normal operations, may reasonably utilize part of the idle raised funds for cash management to increase fund returns and generate more investment income for the company and shareholders. The maximum amount used is no more than RMB 1.3 billion, with a term not exceeding 12 months, and within the above limit and the validity period of the resolution, it can be used cyclically and rolled over. After the cash management of idle raised funds matures, it will be returned to the dedicated raised funds account. The sponsor institution has issued an unopposed verification opinion on this matter. For details, please see the company’s announcement titled “Bertoli on Using Part of Idle Raised Funds for Cash Management,” published on August 1, 2025, on the Shanghai Stock Exchange website (www.sse.com.cn) and in China Securities Journal (Announcement No.: 2025-054). The amount for this cash management is within the authorization limit of the board of directors and does not require shareholder approval.

● Risk Warning

The company will strictly control risks in accordance with relevant regulations, using temporarily idle raised funds to purchase high-security, highly-liquid principal-protected financial products or other compliant products (including but not limited to structured deposits, fixed-term deposits, large-denomination certificates of deposit, etc.). The term of cash management products does not exceed 12 months, and the investment risk is controllable. However, the financial market is greatly affected by macroeconomic factors, and there is a risk that the investment returns may be impacted by market fluctuations.

I. Overview of this Cash Management

（一）Purpose of Cash Management

To improve the efficiency of fund utilization, the company may reasonably use part of the idle raised funds for cash management, increase fund returns, and generate more investment income for the company and shareholders, without affecting the construction of raised fund projects and normal operations.

（二）Sources of Funds and Related Information

1. General situation of fund sources

The funds used for cash management are from temporarily idle raised funds.

2. Basic information of raised funds

According to the “Approval of Wuhu Bertoli Automotive Safety Systems Co., Ltd. for the Public Issuance of Convertible Corporate Bonds” (Securities Approval [2025] No. 631) approved by the China Securities Regulatory Commission, the company publicly issued 28,020,000 convertible bonds, each with a face value of RMB 100.00, raising a total of RMB 2,802,000,000. After deducting issuance costs of RMB 12,349,094.60 (excluding tax), the net raised funds amount to RMB 2,789,650,905.40. The funds have been verified by Rongcheng Certified Public Accountants (Special General Partnership) in Verification Report No. [2025]230Z0075.

The company has signed the “Tripartite Supervision Agreement on the Deposit of Raised Funds” and the “Quadripartite Supervision Agreement on the Deposit of Raised Funds” with the sponsor institution and the commercial bank holding the raised funds, to manage the raised funds in a dedicated account.

（三）Cash Management Limit and Duration

Under the premise of not affecting the normal investment plan of raised funds, the company plans to use up to RMB 1.3 billion of idle raised funds for cash management, with a term not exceeding 12 months, and within the above limit and the validity period of the resolution, it can be used cyclically and rolled over. After maturity, the idle raised funds will be returned to the dedicated raised funds account.

II. Specifics of This Cash Management

（一）Progress of this Cash Management Product

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Note: The estimated income amount is calculated based on the maximum annualized yield; the final income will be based on the actual redemption amount.

（二）Redemption of Part of Cash Management Products

The company purchased a large-denomination certificate of deposit from Huishang Bank Co., Ltd. as part of its cash management products. For details, see the company’s announcement titled “Progress of Using Part of Idle Raised Funds for Cash Management,” published on August 21, 2025, on the Shanghai Stock Exchange website (www.sse.com.cn) and in China Securities Journal (Announcement No.: 2025-065).

Among these financial products, the company redeemed RMB 30 million principal and received RMB 256.8k in financial income, as detailed below:

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III. Approval Procedures

The company held the 9th meeting of the 4th Board of Directors and the 9th meeting of the 4th Supervisory Committee on July 30, 2025, and approved the “Proposal on Using Part of Temporarily Idle Raised Funds for Cash Management,” agreeing that the company, without affecting the construction of raised fund projects and normal operations, may reasonably utilize part of the idle raised funds for cash management to increase fund returns and generate more investment income for the company and shareholders. The maximum amount used is no more than RMB 1.3 billion, with a term not exceeding 12 months, and within the above limit and the validity period of the resolution, it can be used cyclically and rolled over. After maturity, the idle raised funds will be returned to the dedicated raised funds account. The sponsor institution has issued an unopposed verification opinion on this matter. For details, see the company’s announcement titled “Bertoli on Using Part of Idle Raised Funds for Cash Management,” published on August 1, 2025, on the Shanghai Stock Exchange website (www.sse.com.cn) and in China Securities Journal (Announcement No.: 2025-054). The amount for this cash management is within the authorization limit of the board of directors and does not require shareholder approval.

IV. Risk Analysis and Risk Control Measures for Cash Management

（一）Investment Risks

Although the company uses temporarily idle raised funds to invest in high-security, highly-liquid principal-protected products or other compliant products (including but not limited to structured deposits, fixed-term deposits, large-denomination certificates of deposit, etc.), the investment risks are controllable. However, the macroeconomic environment greatly influences the financial market, and there is a risk that the investment returns may be affected by market fluctuations.

（二）Risk Control Measures

1. Strictly adhere to prudent investment principles, select investment targets, and choose products issued by reputable, large-scale entities capable of ensuring fund safety, with good operational efficiency and strong fund management capabilities.

2. The company will analyze and monitor the investment direction and project progress of financial products in a timely manner based on market conditions. If any risk factors that could impact the safety of the company’s funds are identified, appropriate safeguard measures will be taken promptly to control investment risks.

3. The company will disclose specific details of cash management in accordance with the “Shanghai Stock Exchange Stock Listing Rules,” “Regulations on the Supervision of Funds Raised by Listed Companies,” and other relevant laws and regulations, as well as the company’s “Fund Management Measures.”

4. Independent directors and the audit committee of the board have the right to supervise and inspect the use of funds, and may hire professional agencies for audits if necessary.

V. Impact on the Company

Under the premise of complying with national laws and regulations, ensuring the normal progress of raised fund projects, and safeguarding the safety of raised funds, the company’s use of part of its idle raised funds for cash management will not affect the normal construction of the company’s fundraising projects nor the normal use of raised funds. This cash management will help improve the efficiency of raised fund utilization, increase fund returns, and generate better investment returns for the company and shareholders. The income from this cash management belongs to the company and will be managed and used in strict accordance with the requirements of the China Securities Regulatory Commission and the Shanghai Stock Exchange regarding the supervision of raised funds. After maturity, the idle raised funds will be returned to the dedicated raised funds account.

VI. Recent Twelve Months’ Use of Idle Raised Funds for Cash Management as of the Date of This Announcement

Unit: RMB ten thousand

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VII. Risk Reminder

The company will strictly control risks in accordance with relevant regulations, using temporarily idle raised funds to purchase high-security, highly-liquid principal-protected financial products or other compliant products (including but not limited to structured deposits, fixed-term deposits, large-denomination certificates of deposit, etc.). The term of cash management products does not exceed 12 months, and the investment risk is controllable. However, the macroeconomic environment greatly influences the financial market, and there is a risk that the investment returns may be impacted by market fluctuations.

This announcement is hereby made.

Wuhu Bertoli Automotive Safety Systems Co., Ltd.

Board of Directors

March 26, 2026