In 2017, Holtop was elected as National Hi-tech enterprise and launched the Eco-clean Forest series energy recovery ventilators.

In 2016, Holtop moved to her new production base and achieved the annual growth of 39.9%.

In 2014, Holtop was approved by SGS inspection on the ISO management systems.

In 2012, Holtop achieved great success in AHU field by working with Mercedes Benz, BMW, Ford, etc, and rotary heat exchanger certified by Eurovent.

In 2011, Holtop manufacturing bases were certified by ISO14001 and OHSAS18001.

In 2009, Holtop supplied energy recovery ventilation systems to World Expo pavilions.

During 2007- 2008, Holtop built the authorized enthalpy lab and supplied

energy recovery ventilation systems to Olympic Games

In 2005, Holtop moved to a 30,000sqm factory and certificated by ISO9001

In 2004, Holtop rotary heat exchanger launched in the market.

In 2002, Holtop was formally founded and energy recovery ventilator launched in the market.