In October 2016, the new version of the quality management system and environmental management system standards was released and implemented. In view of the revision of the system standards, in order to ensure the effective implementation of the entire group management system and its continuous compliance, effectiveness, suitability, and sufficiency, combined with the actual situation of the group, the organization has studied and implemented relevant standard clauses, revised and improved the relevant management and procedural documents of the "Three in One Management System", and began implementation and operation in May 2017.

On October 13th to 15th, the Shandong branch of Fangyuan Mark Certification Group conducted the first on-site supervision and audit of the quality, environment, occupational health and safety management system revision and operation of Yulong Company, and successfully passed the audit. During this period, the audit team strictly followed international auditing standards and conducted a strict audit on the operation of the company's "three in one management system". Through the audit, the audit team once again gave full recognition to the standardization work of the group's operating system. At the same time, the audit team also proposed specific requirements for rectification and improvement suggestions for the problems that exist in the company's operation.

The "Three in One Management System" is an important measure to strengthen the company's enterprise management. The successful passing of this audit will definitely further promote the implementation of the company's quality, environment, and occupational health and safety "three systems", further improve the management level of each company in the group, better establish the corporate image of the group and the company, and further enhance the company's soft power construction.