The number of insured participants in precision frequency lasers has surged 73 times in seven years.

According to the Tianyancha app, Shanghai Pinzhun Laser Technology Co., Ltd. was established in November 2017, with Zhang Lei as the legal representative. The registered capital is 30 million RMB, and the business scope includes the manufacturing of optical instruments, import and export of goods, and import and export of technology. Information on the number of insured employees shows that the number of insured employees at the company has increased from 7 in 2018 to 519 in 2025.