Production and sales of undimethylhydrazine; import of raw materials, mechanical equipment, instruments and spare parts required for the company's production and scientific research; scientific research and development; technology consulting; production and sales of packaging barrels of the company's holding and joint-stock subsidiaries; equipment Production and installation (excluding special equipment); sales of purchased raw materials, water, and electricity; real estate development and sales. (The above-mentioned business scope projects that require approval according to law can only be carried out with the approval of relevant departments)