What subsidiaries does Hainan Development Holdings have in Chengdu?

Official website information of curtain wall engineering Shenzhen Sanxin Technology Development Co., Ltd., Guangdong Aerospace Special Glass Technology Co., Ltd. and Beijing Sanxin Crystal Decoration Engineering Co., Ltd. shows that the three subsidiaries of Hainan Development Holding Co., Ltd. are curtain wall engineering Shenzhen Sanxin Technology Development Co., Ltd., Guangdong Aerospace Special Glass Technology Co., Ltd. and Beijing Sanxin Crystal Decoration Engineering Co., Ltd., while Hainan Development Holding Co., Ltd. with three subsidiaries has considerable development strength. Hainan Development Holdings generally refers to Hainan Development Holdings Limited. Hainan Development Holdings Co., Ltd. (hereinafter referred to as "Hainan Holdings") is a wholly state-owned company approved by Hainan Provincial People's Government and was established on February 2, 2005.