Supplementary Legal Opinion from Shanghai Jintiancheng Law Firm on Shenzhen Yingkerui Technology Co., Ltd.'s 2026 Private Placement of Shares (Part 1)

Supplementary Legal Opinion (Part 1)

Address:

9/11/12 Floors, Shanghai Center Building, 501 Yincheng Middle Road, Pudong New District, Shanghai
Phone: 021-20511000
Fax: 021-20511999
Postal Code: 200120

Table of Contents

1. Definitions ................................................................................................................... 5
2. Part One: Responses to Issues Raised in the "Review Inquiry Letter" ........................ 7
   • Question 1: ............................................................................................................... 7
   • Question 2: ............................................................................................................. 21
3. Part Two: Significant Changes Affecting the Issuer ................................................... 33
   • I. Approval and Authorization for This Issuance .................................................... 33
   • II. Subject Qualification for This Issuance ............................................................ 33
   • III. Substantive Conditions for This Issuance ......................................................... 33
   • IV. Independence of the Issuer ............................................................................... 37
   • V. Controlling Shareholders and Actual Controllers ............................................... 37
   • VI. Issuer's Capital and Its Evolution .................................................................... 38
   • VII. Issuer's Business .............................................................................................. 38
   • VIII. Related Transactions and Industry Competition ............................................... 41
   • IX. Issuer's Major Assets ........................................................................................ 64
   • X. Major Debts of the Issuer ................................................................................... 66
   • XI. Significant Asset Changes and Mergers and Acquisitions ............................... 72
   • XII. Issuer's Articles of Association Formulation and Amendments ....................... 72
   • XIII. Issuer's Shareholders' Meeting, Board Meeting Rules, Supervisory Meeting Rules and Standard Operations ............................................................................... 73
   • XIV. Changes in Issuer's Directors, Supervisors, and Senior Management ............ 73
   • XV. Issuer's Taxation ............................................................................................... 73
   • XVI. Issuer's Environmental Protection and Product Quality, Technology Standards .................................................................................................................. 75
   • XVII. Use of Raised Funds by the Issuer ................................................................. 77
   • XVIII. Issuer's Business Development Planning ...................................................... 77
   • XIX. Litigation, Arbitration, or Administrative Penalties ....................................... 77
   • XX. Legal Risk Assessment of the Issuer's Fundraising Prospectus ...................... 78
   • XXI. Conclusion ...................................................................................................... 79
   • Appendix 1: Trademarks .......................................................................................... 81
   • Appendix 2: Patents ................................................................................................ 87

Supplementary Legal Opinion (Part 1)

To: Shenzhen Yingkerui Technology Co., Ltd.

Shanghai Jintiancheng Law Firm (hereinafter referred to as "this firm") has accepted the entrustment of Shenzhen Yingkerui Technology Co., Ltd. (hereinafter referred to as "the issuer" or "the company" or "Yingkerui") and, based on the "Special Legal Advisory Contract" signed between the issuer and this firm, serves as the issuer's special legal advisor for the private placement of shares in 2026 (hereinafter referred to as "this issuance"). On April 21, 2026, this firm issued the "Legal Opinion on Shenzhen Yingkerui Technology Co., Ltd.'s Private Placement of Shares in 2026" (hereinafter referred to as "the original legal opinion") and the corresponding "Lawyer's Work Report."