Huamao (Xiamen) New Material Technology Co., Ltd. Announcement on the Conversion Results of Convertible Bonds and Share Changes for the First Quarter of 2026

Stock Code: 603306 Stock Short Name: Huamao Technology Announcement No.: 2026-019

Bond Code: 113677 Bond Short Name: Huamao Convertible Bond

Huamao (Xiamen) New Materials Technology Co., Ltd.

Announcement on the Conversion Results of Huamao Convertible Bonds in the First Quarter of 2026 and Changes in Share Capital

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

Key Matters to Note:

Conversion status: During the period from January 1, 2026 to March 31, 2026, a total of RMB 18,000 of “Huamao Convertible Bond” has been converted into the Company’s shares. The number of shares formed in the current period due to conversion was 532 shares. As of March 31, 2026, a cumulative total of RMB 994,000 of “Huamao Convertible Bond” has been converted into the Company’s shares, a cumulative amount of RMB 1,000 of “Huamao Convertible Bond” has been repurchased, and the cumulative number of shares formed due to conversion was 29,409 shares, accounting for 0.00902% of the total number of shares issued by the Company prior to conversion of the convertible bonds.

Convertible bonds not yet converted: As of March 31, 2026, the amount of “Huamao Convertible Bond” that has not yet been converted was RMB 1,049.50 million, accounting for 99.90524% of the total issuance of “Huamao Convertible Bond.”

I. Issuance and Listing of the Convertible Bonds

(I) Basic Information

Approved for registration by the China Securities Regulatory Commission (CSRC) in the document Zheng Jian Ke Xu [2023] No. 1682, Huamao (Xiamen) New Materials Technology Co., Ltd. (hereinafter referred to as “the Company” or “the Company”) issued 10.5 million convertible corporate bonds to non-specific investors on September 14, 2023, with each bond having a par value of RMB 100 and a total issuance amount of RMB 10,500 million. The term is six years from the date of issuance, i.e., from September 14, 2023 to September 13, 2029.

With approval from the Shanghai Stock Exchange (hereinafter referred to as the “SSE”) via its self-regulatory supervisory decision document [2023] No. 228, the Company’s RMB 10,500 million convertible bonds have been listed and traded on the SSE starting from October 12, 2023. The bond short name is “Huamao Convertible Bond,” and the bond code is “113677.”

Pursuant to relevant regulations and the terms of the prospectus titled “Prospectus on the Issuance of Convertible Corporate Bonds to Non-Specific Investors by Huamao (Xiamen) New Materials Technology Co., Ltd.” (hereinafter referred to as the “Prospectus”), the “Huamao Convertible Bond” issued by the Company may be converted into the Company’s shares starting from March 20, 2024, with the initial conversion price of RMB 34.18 per share.

(II) Adjustment to the Conversion Price

Due to the exercise by certain incentive recipients under the Company’s 2021 Share Option Incentive Plan of the second exercise period, the conversion price of the “Huamao Convertible Bond” has been adjusted from April 3, 2024 to RMB 34.15 per share. For details, please refer to the Company’s announcement titled “Huamao Technology on the Adjustment to the Conversion Price of the ‘Huamao Convertible Bond’ and the Suspension and Resumption of Conversion Trading” (Announcement No. 2024-025) disclosed on the SSE website (www.sse.com.cn) on April 2, 2024.

Due to the Company’s implementation of the 2023 profit distribution, the conversion price of the “Huamao Convertible Bond” has been adjusted from June 17, 2024 to RMB 33.96 per share. For details, please refer to the Company’s announcement titled “Huamao Technology on Adjusting the Conversion Price of the ‘Huamao Convertible Bond’ Due to Profit Distribution” (Announcement No. 2024-054) disclosed on the SSE website (www.sse.com.cn) on June 7, 2024.

Due to the exercise by certain incentive recipients under the Company’s 2021 Share Option Incentive Plan of the third exercise period, the conversion price of the “Huamao Convertible Bond” has been adjusted from October 15, 2024 to RMB 33.95 per share. For details, please refer to the Company’s announcement titled “Huamao Technology on the Adjustment to the Conversion Price of the ‘Huamao Convertible Bond’ and the Suspension and Resumption of Conversion Trading” (Announcement No. 2024-090) disclosed on the SSE website (www.sse.com.cn) on October 14, 2024.

Due to the exercise by certain incentive recipients under the Company’s 2021 Share Option Incentive Plan of the third exercise period, the conversion price of the “Huamao Convertible Bond” has been adjusted from January 6, 2025 to RMB 33.85 per share. For details, please refer to the Company’s announcement titled “Huamao Technology on the Adjustment to the Conversion Price of the ‘Huamao Convertible Bond’ and the Suspension and Resumption of Conversion Trading” (Announcement No. 2025-004) disclosed on the SSE website (www.sse.com.cn) on January 3, 2025.

Due to the Company’s implementation of the 2024 profit distribution, the conversion price of the “Huamao Convertible Bond” has been adjusted from June 23, 2025 to RMB 33.76 per share. For details, please refer to the Company’s announcement titled “Huamao Technology on Adjusting the Conversion Price of the ‘Huamao Convertible Bond’ Due to Profit Distribution for 2024 and the Resumption of Conversion Trading” (Announcement No. 2025-055) disclosed on the SSE website (www.sse.com.cn) on June 13, 2025.

Due to the exercise by certain incentive recipients under the Company’s 2021 Share Option Incentive Plan of the third exercise period, the conversion price of the “Huamao Convertible Bond” has been adjusted from October 13, 2025 to RMB 33.74 per share. For details, please refer to the Company’s announcement titled “Huamao Technology on the Adjustment to the Conversion Price of the ‘Huamao Convertible Bond’ and the Suspension and Resumption of Conversion Trading” (Announcement No. 2025-101) disclosed on the SSE website (www.sse.com.cn) on October 10, 2025.

As of the date of disclosure of this announcement, the conversion price of the “Huamao Convertible Bond” is RMB 33.74 per share.

(III) Repurchase and Redemption of the Convertible Bonds

Due to the “Huamao Convertible Bond” triggering the additional repurchase clause stipulated in the “Prospectus,” the Company conducted repurchase and redemption from September 26, 2024 to October 9, 2024, with the redemption price being RMB 100.02 per bond (including interest accrued for the current period). The number of bonds redeemed during the declaration period was 10, and the redemption funds of RMB 1,000.20 were paid on October 14, 2024. For details, please refer to the Company’s announcement titled “Huamao Technology on the Announcement of the Results of the Optional Repurchase and Redemption of the ‘Huamao Convertible Bond’” (Announcement No. 2024-091) disclosed on the SSE website (www.sse.com.cn) on October 14, 2024.

II. Conversion of the “Huamao Convertible Bond” in This Period

During the period from January 1, 2026 to March 31, 2026, a total of RMB 18,000 of “Huamao Convertible Bond” has been converted into the Company’s shares. The number of shares formed in the current period due to conversion was 532 shares.

As of March 31, 2026, a cumulative total of RMB 994,000 of “Huamao Convertible Bond” has been converted into the Company’s shares, a cumulative amount of RMB 1,000 of “Huamao Convertible Bond” has been repurchased, and the cumulative number of shares formed due to conversion was 29,409 shares, accounting for 0.00902% of the total number of shares issued by the Company prior to conversion of the convertible bonds.

As of March 31, 2026, the amount of “Huamao Convertible Bond” that has not yet been converted was RMB 1,049.50 million, accounting for 99.90524% of the total issuance of “Huamao Convertible Bond.”

III. Changes in Share Capital

The changes in the Company’s share capital structure in the first quarter of 2026 are as follows:

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IV. Other Matters

If investors require more detailed information about the Huamao Convertible Bond, please refer to the prospectus titled “Prospectus (Draft for Issuance) on the Issuance of Convertible Corporate Bonds to Non-Specific Investors by Huamao (Xiamen) New Materials Technology Co., Ltd.” (Draft for Issuance) disclosed by the Company on the SSE website (www.sse.com.cn) on September 12, 2023.

Contact Department: Securities Department

Consultation Telephone: 0592-7795188

Consultation Email: ir@hmtnew.com

This announcement is hereby made.

Huamao (Xiamen) New Materials Technology Co., Ltd.

Board of Directors

April 2, 2026

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