Wholesale of hazardous chemicals (operated with a hazardous chemicals business license); sales of cinnamic aldehyde, coumarin, and other chemical products (excluding hazardous goods); self-operated and agent import and export business of various commodities and technologies, but Exceptions are goods and technologies that are restricted by the state for enterprise operation or prohibited from import and export. **(If the above projects involve special approval, they can only be operated with administrative permission)