SGS certification refers to the service that SGS conducts compliance certification for targets according to standards, regulations, customer requirements and other conditions. SGS is the abbreviation of Societe Generale de Surveillance S.A., translated as "General Notary Company". Founded in 1878, it is the world's largest and oldest private third party multinational company engaged in product quality control and technical appraisal. Headquartered in Geneva, it has more than 1,800 branches and professional laboratories and more than 59,000 professional and technical personnel around the world, and carries out product quality inspection, monitoring and assurance activities in 142 countries. SGS materials laboratory can provide various tests of building materials, polymer materials, and materials, including mechanical properties, composition, size, aging, salt spray, composition, flame retardancy, etc. The SGS inspection team can provide on-site inspection services such as supply chain management, customs clearance reports, and non-destructive testing. SGS chemical laboratory can provide the most complete environmental testing, wet analysis of ingredients and other complex chemical analysis.