Hainan Development Holdings Nanhai Co., Ltd. operates in curtain wall and interior decoration engineering, photovoltaic glass, and special glass deep processing in China and internationally. It undertakes curtain wall and decoration projects and supplies energy-saving architectural glass, including various Low-E, heat-reflective, tempered, insulated, laminated, curved, and colored glass products. The company also provides specialty glass technology R&D, production line design, and production technology services, as well as brand positioning, strategic planning, store operations, brand marketing, CRM, private domain operations, warehousing and distribution, and pre-sales and after-sales customer services. Formerly known as AVIC Sanxin Co., Ltd., it was founded in 1995 and is headquartered in Shenzhen, China.