To all cooperating suppliers,

To build a fair, open, and honest procurement environment, eliminate improper practices and commercial bribery, and protect the legal rights of both parties, Shenzhen Tongyuexin Technology Co., Ltd. hereby issues this notice. All suppliers are expected to comply and supervise each other.

Key Principles

· Strict compliance with laws and regulations

· Integrity, fair competition, and good faith performance

· Procurement decisions based on quality, price, service, and reputation

Prohibited Conduct

· Suppliers: No gifts, improper hospitality, kickbacks, bid-rigging, or retaliation against whistleblowers

· Employees: No soliciting/accepting benefits, leaking confidential information, or interfering with procurement processes

Confidential Whistleblower Channel

· 24-hour Hotline: +86 18923884932

Consequences of Violations

· Confirmed violations will result in suspension/termination of cooperation, payment withholding, and potential legal action.

Together, let's combat commercial bribery and build a clean, efficient supply chain for mutual benefit.

This notice takes effect immediately.

Shenzhen Tongyuexin Technology Co., Ltd.

April 2, 2026