The company has four holding companies: Zonghe SmithKline (wholly-owned subsidiary), Zonghe Changda (holding company), Zonghe Chuangchuang (holding company) and Zonghe Kovar (joint venture company). On June 5438+ 10, 2005, Zonghe Science and Technology Production Base was completed and put into operation in Beijing Miyun Economic Development Zone. After the expansion, the base now covers an area of 84 mu, with 25,000 square meters of workshops, more than 2,500 square meters of office buildings and nearly 4,000 square meters of supporting facilities.