At present, the group has more than 20 subsidiaries，joint ventures, and holding companies. lt has developed into a diversified national-evel high-techgroup enterprise integrating four major industriesincluding manufacturing, technology informationservices, financial services, and industrial real estate.With Shenzhen as its window and Hefei as its base, itis currently the largest manufacturer of large-scalevacuum optoelectronic complete sets of productionequipment in China, one of the largest domesticsuppliers of optoelectronic thin film information