In 1993, Beijing ChoiceMMed Electronic Technology Co., Ltd. was established, dedicated to the R&D, production and sales of professional medical equipments. The ChoiceMMed brand has become an internationally renowned medical device brand. The company's monitors, oximeters and other medical device products sell well in more than 130 countries and regions around the world. The annual output value exceeds 1.5 billion.

In 2017, Tianjin Chase Sun Pharmaceutical Co.,Ltd., a listed company, wholly acquired Beijing ChoiceMMed Electronic Technology Co., Ltd.

In March 2021, the original founder of Beijing ChoiceMMed and the core team jointly founded Beijing HOCN Technology Co., Ltd., officially entering the environment space disinfection and biopharmaceutical GMP environment sterilization industry.                    

In May 2021, the company made significant progress in the R&D of two hydrogen peroxide dry fog disinfection machines.

In July 2021, WD-1000, the first portable hydrogen peroxide dry fog disinfection machine was put into production.

In September 2021, WD-1000 passed CMA/CNAS domestic and international double certification, which proved that it has a verifiable killing effect on a variety of bacteria, viruses, spores and other microorganisms.

In October 2021, AM-1000, the first vertical mobile hydrogen peroxide dry fog disinfection machine was put into production.

In November 2021, WD-1000 passed the filing and review of China's disinfection products and was officially introduced to the domestic market.

In February 2022, AM-1000 passed the CMA/CNAS domestic and international double certification, which proved that it has a verifiable killing effect on a variety of bacteria, viruses, spores and other microorganisms. Also passed the filing audit of China's disinfection products and was officially introduced to the domestic market.

In May 2022, WD-1000 got certificate of the Europe CE and US FCC.

In December 2022, the sales amount of HOCN branded disinfection machine exceeded 10 million in China.