Permitted projects: All kinds of engineering construction activities; Power generation, transmission and supply business; Import and export of goods Technology import and export. (Projects subject to approval in accordance with the law can only be carried out after approval by the relevant authorities. The specific business items are subject to the approval documents or licenses issued by the relevant authorities. ) General project: Manufacturing of plastic products; Sales of plastic products Sales of agricultural films Sales of bio-based materials Sales of mechanical equipment Research and development of new materials technology Technical services, technical development, technical consultation, technical exchange, technical transfer, and technical promotion. (Except for projects that require approval in accordance with the law, business activities are carried out independently in accordance with the business license. )