The company is a leading manufacturer of integrated optical products in China. It was founded in 1984 and listed on the main board of the Hong Kong Stock Exchange on June 15, 2007. It is the first domestic optical company listed in Hong Kong. The group company has more than 20,000 employees and assets of more than 17 billion yuan. The company has long been focusing on the field of optical products. For more than 30 years, it has been focusing on optical components and integrating upstream and downstream. It is the largest manufacturer of integrated optical products in China.