Xiediren Functional Material Inc is one of the leading construction material manufacture in China. The company  specializes in developing New Building Envelope System, Manufacturing Building insulation material. Found in 2007, the company�� operation has already covered from the Perlite ore mining  to the construction contract. this makes us the most vertically integrated company in the industry.  Currently, Xiediren operates one  perlite mining and processing operation, three perlite expansion facilities and 5 building insulation material factories across China. it has finished more than 100,000 sq meter wall, roof and floor insulation projects. The company has  partnered up with Fudan University and  continuously invested in R&D in order to make better and sustainable building material.  Grenvo Trading inc  is fully owned by Xiediren Industrial Co. this subsidiary is specialize in both trading and sourcing related service for our international clients.