The quality level certification of slag powder has been carried out one after another. Following the on-site inspections of Nangang Jiahua and Shanghai Baotian Company, on May 25, 2021, the inspection team carried out factory inspections on Zhanjiang Baosteel New Building Materials Technology Co., Ltd. (hereinafter referred to as "Zhanjiang Baosteel Building Materials").

The inspection team first conducted an overall inspection of the Zhanjiang Baosteel Building Materials Factory, and then carried out detailed inspections of the factory’s production process control, key production process control, quality management documents, production environment, etc., to investigate whether the factory has the ability to ensure mass production. The consistency of certified product quality.

The inspection team completed the on-site sampling under the witness of Zhanjiang Baosteel's building materials related personnel. The sampling method was carried out in accordance with GB/T 18046-2017 "Granulated Blast Furnace Slag Powder Used in Cement, Mortar and Concrete". After the on-site sample was sealed The logistics company is entrusted to mail it to the third-party testing organization "China Building Materials Inspection and Certification Group Co., Ltd." for testing.

After two days of comprehensive understanding, the inspection team conducted a comprehensive and detailed review of Zhanjiang Baosteel's building materials production and quality control process, and also put forward constructive opinions on the management, laboratory, comprehensive department, and slag powder operation area. The person in charge of Zhanjiang Baosteel Building Materials recognized the professional inspection work of the inspection team and believed that this slag powder quality grade certification work will further enhance the quality management level of Zhanjiang Baosteel Building Materials Factory.