1999Established and launched products in the year. 2000Successfully developed high efficiency heat pump air conditioner. 2001ISO 9001 certified for the first time certification. 2002Products are CE CB certified and exported to Europe. 2003Honored the title of Trusted Quality Products Enterprise. 2004Promote air source heat pump water heater in domestic market. 2005Denominated the name of "Air Source Heat Pump Water Heater" in Chinese "Kong Qi Neng" Water Heater in China, and recognized by the industry. 2006Start to provide heat pump training course twice per year for the industry. 2007Joined in the National Standard of Heat Pump Water Heater Drafting Committee. 2008Recognized as high-tech enterprises by the government. 2009Inverter Heat Pump for Radiant heating and cooling supplied in Japan market. 2010Obtained deflector-type heat dissipation device patent and triple-function heat pump patent. 2011Successfully developed wrap-around aluminum microchannel heat exchanger and introduced the technology to production. 2012Qualified for the rebate program of Energy-saving Products launched by the government. 2013Launched clean production plan. 2014Awarded Excellent quality brand enterprise. 2015New series of DC inverter heat pump made great success in both domestic and overseas market. 2016Participated in Beijing coal-to-electricity project, replace coal boiler with TONGYI heat pump for surburb house heating. 2017Establishing Tongyi Air Source Heat Pump Research Institute. 2018Release new DC EVI heat pump for domestic house heating and cooling in MCE Milan. 2019Served the hot water project of Daxing international airport（Asian top airport) 2020Release new DC EVI heat pump for commercial heating and cooling. 2021Moved to new head quarter in Guangzhou.