CSC Financial Co., Ltd.
Regarding
Nanjing Tengya Precision Technology Co., Ltd.
Listing Sponsorship Letter for Issuance of Shares to Specific Targets via Simplified Procedure
Sponsor (Lead Underwriter)
(Building 4, 66 Anli Road, Chaoyang District, Beijing)
June 2026
Declaration by Sponsor and Sponsor Representatives
CSC Financial Co., Ltd. and the project's sponsor representatives, Ding Qiuyang and Liu Qilin, 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, and other relevant laws, regulations, and provisions of the China Securities Regulatory Commission and the Shenzhen Stock Exchange. We have acted with honesty, trustworthiness, and due diligence, strictly following legally established business rules and industry self-regulatory standards to issue this listing sponsorship letter, and we guarantee that the documents provided are true, accurate, and complete.
Table of Contents
Definitions 3
I. Basic Information of the Issuer 5
II. Details of the Issuer's Current Issuance 15
III. Information on Sponsor Representatives, Coordinators, Other Project Team Members, Contact Addresses, Telephone Numbers, and Other Communication Methods for this Securities Issuance and Listing 17
IV. Explanation on Whether the Sponsor Has Any Circumstances That May Affect the Impartial Performance of Sponsorship Duties 19
V. Matters the Sponsor Shall Commit to in Accordance with Relevant Regulations 19
VI. Sponsor's Explanation on Whether the Issuer Has Fulfilled the Decision-Making Procedures Stipulated by the Company Law, the Securities Law, and the China Securities Regulatory Commission and Shenzhen Stock Exchange for this Securities Issuance and Listing 20
VII. Sponsor's Professional Judgment on Whether the Issuer Meets Sector Positioning and National Industrial Policies, Including Reasons and Basis, and the Sponsor's Verification Content and Process 22
VIII. Work Arrangements During the Continuous Supervision Period 23
IX. Sponsor's Recommendation Conclusion for this Project 24
Definitions
In this listing sponsorship letter, unless otherwise stated, the following terms have the following specific meanings:
I. Basic Terms