The Kaixin plant is located in Beijing Daxing Biotechnology Industrial Park, adjacent to several existing Kexing parks. The project is based on the acquisition of the old pharmaceutical factory for renovation and expansion, the west side of the base and the south side of the landscape is good, the east side is the proposed pharmaceutical park, the north side is the planned public supporting facilities land, there are 4 built buildings in the park, the construction land area is 82,000 square meters, the total construction area is 156,000 square meters, and the new building scale is 89,000 square meters.