Business scope: development, manufacture, sales and technical services of monocrystalline silicon and its products, semiconductor components and new energy-saving materials; Computer software development, technology transfer and sales; Development, sales and service of computer system integration and electronic engineering; Development, project undertaking and technical consultation of electric power automation system and communication system; Design, complete sets of equipment, construction, installation, commissioning, consulting, operation and equipment procurement services for wind power generation projects, thermal power generation projects, environmental protection projects and rail transit projects; Investment and development of high-tech industries; Sales of computer equipment, electronic equipment, power supply equipment, electronic components, electronic materials, communication equipment, chemical products, chemical raw materials (except hazardous chemicals) and metal materials; Manage and represent the import and export business of various commodities and technologies (except those prohibited or restricted by national laws and regulations); All other legal project companies that do not need to be reported for approval are mainly engaged in the production and sales of monocrystalline silicon and its products and semiconductor components. They are the leading enterprises in the semiconductor industry, and their export earnings and market share are in the forefront of their domestic counterparts. The company's "8-inch integrated circuit polished silicon wafer" and "8-inch integrated circuit monocrystalline silicon technical transformation project" belong to high-tech projects supported by the state.