three wholly-funded subsidiaries: ZheJiang Crystal Display Technology Co,Ltd; Jiangxi Crystal Optech Co., Ltd; andzhejiang Fang yuan YeShiLi reflective material Co., Ltd., one holding company: Zhejiang T.Best Electronic Information Technology Co.,Ltd and holds the equity interest of OPTORUN Co., Ltd., ZJU Joint Innovation Investment (Limited Partnership) and Ningbo Joint Innovation cornerstone investment (Limited Partnership).

The main products of the company are applied to the digital camera, mobile phone camera, Security monitoring camera, computer camera and other digital camera lens, semiconductor illumination, micro projector, Smart glasses, road traffic mark and safety protection. The sales volumes of two leading products: optical low-pass filter (OLPF) and infrared cut filter (IRCF) are among the highest in the world. The company is the main supporting supplier of lots of international famous or leading enterprises in digital industry and cell phone communication industry.

The company has the precise optical cold working technology, super-hard material optical process technology, precise optical film, semiconductor process, coating, and embedding core technologies; and the optical low-pass filter, the infrared cut filter and components thereof, the narrow-band pass filter, thermal diffusion panel, the LED sapphire substrate, the micro projector and the reflective material series products are in the domestic and international leading level.