Guangdong Sunrain Air Source Energy

World's largest solar water heater supplier, was founded in 1999. Public listed technology enterprise group dedicated to "Make the world cleaner, make the life better". It has more than 20 years of solar thermal utilization, 10 years of air source heat pumps, and 7 years of photovoltaic business experience, providing clean hot water and thermal energy solutions for 25 million households and 20,000+ engineering customers in over 100 countries.