Likulu lopanga Holtop lili m'munsi mwa Phiri la Beijing Baiwangshan, lomwe lili ndi malo a 30,000 sq.Malo opangira zinthu ali ku Beijing's Badaling Economic Development Zone, yomwe ili ndi malo okwana maekala 60, omwe amapanga mayunitsi 200,000 pachaka a zida zobwezeretsa kutentha kwa mpweya.