Recently, Yanyi Group successfully passed the annual review of the U.S. NAMI certification and the American NFRC certification. This year's audit method differed from previous years, as it was conducted through online video inspection. All communication meetings for this audit were arranged at Yanyi Group's North China production base.

During the audit process, the American standards experts conducted a rigorous review of the group's design, production, processes, quality, and various departments as planned, through exchanges, communication, and reviewing documents and records with our American standards responsible personnel. The experts meticulously examined the group's quality documents, procedural documents, various certificates and reports, as well as process control, and fully interacted and communicated with the group's American standards responsible personnel during the audit.

The American standards experts highly praised the collaborative capabilities of the group's management team and expressed affirmation and appreciation for the overall operational status of the group. They recognized that the group has done a significant amount of work in multiple management processes such as personnel qualifications, education and training, equipment maintenance, product process quality management, product processes, and design deepening, with effective control, thereby determining that Yanyi Group complies with the standards of NAMI and NFRC certifications.