GMCC has long been involved in research and the application of environmentally-friendly refrigerants and has released the first compressor products featuring R407C, R410A, CO2, R290, R32, and other green refrigerants over the past decade. Its two United Nations exemplary R290 compressor production lines passed acceptance inspection at the end of 2014, and the company is now producing the widely-used R290 compressors for various types and models in large volumes for customers all over the world.