Welcome to Sunjoy Technology Co., Ltd.! Founded in 2003, we specialize in the research, development, production, and sales of thermal-insulation materials. Our two production bases are located in the Baodi Economic Development Zone, Tianjin, and the Langfang Economic Zone, Hebei Province. With over 1,000 employees—including more than 200 R&D staff—we operate 15 fully automated production lines and achieve a $10 million annual output value.
Our main products include high-quality rock wool, glass wool, ceramic fiber, etc.



We have strategic cooperative relations with large state-owned enterprises such as China State Construction Group, China Railway Construction Group, China Communications Construction Group and China Resources Group.  Our products are sold to Southeast Asia, South America and the Middle East and other countries and regions.

We hope that you and I have jointly promoted the development of building energy saving and green environmental protection technology and made positive contributions to the sustainable development of the construction industry.