2020, during the outbreak of new coronavirus, Holtop was selected as the quality supplier to support ventilation solutions to hospitals across the nation. 

In 2019, Holtop international distributor conference was held in Beijing. 

In 2018, Holtop launched the new fresh air dehumidifiers and air handling unit with heat pump system

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.