In April 2021, the appraisal and evaluation expert group dispatched by Henan Provincial Market Supervision Administration completed the appraisal and evaluation of kaifeng huanghe Air Separation Group Co., LTD. 's application for the replacement of the pressure vessel manufacturing license. The special equipment supervision department of Kaifeng Market Supervision Administration sent representatives to supervise the whole process of appraisal.

In view of the application submitted by the applicant, the review expert group inspected the work site and site, inspected the equipment and means, specifications and technical standard configuration, and file management, verified the qualification certificate and personnel status of the applicant, and examined the establishment and implementation of the quality assurance system documents of the applicant. The production products and relevant documents of the applicant within the previous validity period were randomly checked, and the relevant system personnel were assessed and defense, etc. In view of the deficiencies found in the review process, the review panel put forward the relevant review work memorandum. The huanghe Air separation quality assurance system and relevant personnel have made rectification one by one and completed the rectification report according to the rectification requirements put forward by the expert group, and timely reported to the Market Supervision Administration of Henan Province and the evaluation body as required.

On May 18, 2021, Henan Provincial Market Supervision Administration issued the "Special Equipment Production License of the People's Republic of China" for huanghe Air Separation, the license project is fixed pressure vessel high pressure vessel (A2) manufacturing, certificate number TS2241362-2025.