Listing Sponsorship Letter from Zhong De Securities Co., Ltd. Regarding the 2026 Annual Issuance of A-Shares to Specific Targets by Hangzhou Gaoxin Materials Technology Co., Ltd.
Sponsor (Lead Underwriter)
June 2026
Declaration by the Sponsor and Sponsor Representatives
Zhong De Securities Co., Ltd. (hereinafter referred to as "Zhong De Securities," "Sponsor," or "this Sponsor") has accepted the engagement by Hangzhou Gaoxin Materials Technology Co., Ltd. (hereinafter referred to as "Hangzhou Gaoxin," "the Company," or "the Issuer") to act as the sponsor for this issuance of A-shares to specific targets, and has designated Chen Yadong and Tian Jiwei as the sponsor representatives for this project. Zhong De Securities and the sponsor representatives hereby make the following commitments:
Zhong De Securities and its sponsor representatives have acted in accordance with the Company Law of the People's Republic of China, the Securities Law of the People's Republic of China, the Administrative Measures for the Registration of Securities Issuance by Listed Companies, and other laws, regulations, and relevant provisions of the China Securities Regulatory Commission (hereinafter referred to as "CSRC") and the Shenzhen Stock Exchange (hereinafter referred to as "SZSE"). We have acted with honesty, integrity, and due diligence, strictly following the legally established business rules and industry self-regulatory norms to issue this listing sponsorship letter, and guarantee that the documents issued are true, accurate, and complete.
Unless otherwise specified, the terms used in this listing sponsorship letter have the same meanings as those in the Prospectus for the 2026 Annual Issuance of A-Shares to Specific Targets by Hangzhou Gaoxin Materials Technology Co., Ltd.
Contents
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Sponsor and Sponsor Representative Declaration
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Contents
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Issuer Overview
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Details of the Issuer's Current Issuance
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Information on Sponsor Representatives, Coordinators, and Other Project Team Members
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Statement on the Relationship Between the Sponsor and the Issuer
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Sponsor's Commitments
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Decision-Making Procedures for the Current Securities Issuance and Listing
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Statement on Compliance with Listing Conditions
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Work Arrangements for Continuous Supervision of the Issuer
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Sponsor's Recommendation Conclusion for the Current Securities Issuance and Listing
I. Issuer Overview
(I) Basic Information of the Issuer
| Item | Details |
|---|---|
| Company Name | Hangzhou Gaoxin Materials Technology Co., Ltd. |
| English Name | Hangzhou Gaoxin Materials Technology Co., Ltd. |
| Unified Social Credit Code | 913300007682195527 |
| Date of Establishment | 2004-11-26 |
| Listing Date | 2015-06-10 |
| Registered Capital | 126.673 million RMB |
| Legal Representative | Lin Rongsheng |
| Registered Address | No. 3, Houcunqiao Road, Jingshan Town, Yuhang District, Hangzhou |
| Office Address | No. 3, Houcunqiao Road, Jingshan Town, Yuhang District, Hangzhou |
| Postal Code | 311116 |
| Stock Code | 300478 |
| Stock Abbreviation | Hangzhou Gaoxin |
| Place of Listing | Shenzhen Stock Exchange |
| Board Secretary | Xiang Shuai |
| Contact Phone | 0571-88581338 |
| Fax Number | 0571-88581338 |
| Company Website | www.hangzhougosing.cn |
| hzgx@hangzhougosing.cn |
(II) Issuer's Main Business
The Company's main business is the R&D, production, and sales of polymer materials for wires and cables. The Company's products are widely used in power, energy, construction, transportation, communication, engineering machinery, automobiles, and other fields. The Company currently has four major product series: general PVC cable materials, special PVC cable materials, halogen-free low-smoke flame-retardant cable materials, and special polyethylene and cross-linked polyethylene cable materials. The Company is one of the few domestic wire and cable material manufacturers with large-scale production, serialized products, and advanced formulas and production processes.