Established Cheongsu Chemical in 1987 (environmental chemicals and pollution prevention facility operation management technology)

1997.10 Incorporation of Cheongsu Water Treatment Industry Co., Ltd. (CEO Kim Hae-yong)

2000.05 Change of corporate name to M Doctor Co., Ltd.

2000.10 Development of a heavy metal solidifier (chelate) (registered as a partner company for local government incinerators nationwide)

2001.02 Trademark registration: HEMIMATE (heavy metal treatment agent, chelating agent, solidifying agent)

June 2004: Headquarters relocation and CEO change (CEO Heo Tae)

Establishment of a research department in October 2004 (development of various eco-friendly products such as detergents and environmental chemicals)

2005.02 ISO 14001:2004 certification obtained

March 2006 Patent registration for heavy metal solidification agent (incineration ash, wastewater) (Patent No. 10-0565451)

2006.05 Registered as a venture company (new technology sector)

December 2006: Acquired INNO-BIZ certification as a technologically innovative small and medium-sized enterprise

2007.03 Patent registration for N-HEXANE substitute (Patent No. 10-0695745)

February 2011 Acquired recognition as a corporate research institute

2012.03 Development of RAPID, a multipurpose detergent, completed

December 2013: Headquarters moved to a new factory

2014.01 KC Mark Acquisition (Quality Management Safety Certification for Industrial Products) Product Name: RAPID

February 2014 Patent registration for peelable heat-resistant silicone

December 2018 Patent registration for heavy metal fixative manufacturing device (Patent No. 10-1929324)

July 2025 Patent registration for heavy metal fixative and its manufacturing method (Patent No. 10-2833256)