R&D of optical systems; Manufacturing of optical lenses, optical instruments and accessories; Semiconductor material processing; Development, production and sales of laser cutting machines, laser engraving machines, laser welding machines, optical instruments and accessories; Sales of laser equipment and laser products; Self-support Acting as an agent for the import and export of various commodities and technologies, except those that the state restricts the company's operations or prohibits the import and export of commodities and technologies. (Projects that are subject to approval in accordance with the law can be operated only after being approved by relevant departments)