1, Hengtong photoelectric: subsidiary layout of silicon optical chip, in the CPO photoelectric synergistic packaging layout of the domestic earlier.

2, Yongding shares: China's cable industry, the first private listed companies. Main business fiber optic cable, wire and cable, special optical cable, optical components, communication devices and equipment, communications data and engineering services, system integration solutions to provide communications industry chain coverage of one of the industry's leading enterprises.

3, Huaxi shares: the company's shareholding in the company's optical modules involved in the business, the company indirectly through the Shanghai Qilan 28.17% of its shareholding. Sols Optical in the field of optical modules in the world's tenth.