The FSC certificate is valid for 5 years, but it must be reviewed once a year. All wood or bamboo raw materials can pass FSC certification. At present, the most industries include paper-making, printing, packaging, furniture, building materials, handicrafts, flooring and other bamboo and wood raw materials manufacturers and trading companies. FSC certification is the certification of forest supply chain. From logs to final products, any factory/company involved in this process needs FSC certification, and traders are no exception. This is obviously different from other projects, such as foreign trade inspection, which is audited by the factory.