On April 16, 2024, Zhongzhi (Beijing) Certification Co., Ltd. conducted a supervision and audit of our intellectual property management system. Relevant personnel from the finance department, audit department, enterprise management department, and technology department participated in the discussion and accompanied the audit.

The audit team conducted spot checks on the assembly workshop, valve machining workshop, and pipe workshop. After a comprehensive and meticulous inspection, and in-depth communication with relevant functional departments, the audit team fully affirmed the effectiveness and compliance of our company's intellectual property management system's continuous operation and unanimously agreed to pass the audit.

At the same time, the audit team has also put forward improvement suggestions for the relative shortcomings. We will conscientiously implement them, make timely improvements, leverage strengths and avoid weaknesses, continue to maintain and deepen the good operation of the intellectual property management system, and add new momentum to the high-quality and sustainable development of the company.