Investment in the energy industry; self-operated and brokered import and export business of various commodities and technologies; production and sales of chemical products (excluding dangerous goods); export of the company's own products and related technology; import of raw and auxiliary materials, machinery, equipment, instruments, spare parts and technology required by the enterprise for production and scientific research; project investment; warehousing services; sales of natural rubber and rubber products. (For projects requiring approval according to law, business activities can only be carried out after approval by the relevant departments)