From June 4th to 7th, 3 members of an expert group composed of China Petroleum and Chemical Industry Association, China Chemical Construction Enterprise Association and Beijing Sinochem Joint Certification Co., Ltd. carried out a special evaluation work on the qualified service providers (chemical plant demolition construction work) of China petrochemical industry. During four-day evaluation, the association experts who were strictly in accordance with The Evaluation Standard of Safety Service Capability Level of Chemical Plant Demolition Construction Enterprise and The Evaluation Implementation Rules of Safety Service Capability Level of Chemical Plant Demolition Construction Enterprise, compared and scored in terms of qualification, technical levels, equipment resources, safety service management and other capabilities of CC7 engaging in chemical plant demolition item by item, and carried out a site visit on the electromechanical and instrument project operation guarantee work in Wengfu Dazhou Chemical Co., Ltd. Finally, the experts of the assessment group fully affirmed CC7’s management system and application status, and agreed that CC7 met the requirements of class A in The Evaluation Standard of Safety Service Capability Level of Chemical Plant Demolition Enterprise, and CC7 passed the assessment with high scores.