Certified as a clean workplace in risk assessment (by Korea Occupational Safety and Health Agency)
2019
Acquired intellectual property management certification (by Korean Intellectual Property Office)
Acquired ISO 9001 certification: Quality Management System (by SBC Registrar)
Renewed ISO 14001 certification: Environmental Management System (by SBC Registrar)
Acquired ISO 45001 certification: Occupational Health and Safety Management System (by SBC Registrar)
Acquired material/part/equipment specialized company certification (by Korea Evaluation Institute of Industrial Technology)
Renewed Inno-Biz certification (by Small and Medium Business Administration)
Acquired certification for registration of selected developed products (by Korea Southern Power)
Registered as a shipbuilding partner (Hyundai Heavy Industries Power System)
Received a new order for scrubber system and air sealing fan products (by Hyundai Heavy Industries Power System)
Received a new order for energy solution EGR system (by MAN)
Received a new order for SCR - HP system (by Hyundai Heavy Industries Engine & Machinery Division)
Received a new order for EGR system (by STX Engine)
2018
Renewed Promising Export SME certification (by Gyeongsangnam-do Regional Small and Medium Business Administration)
Acquired Korea's first MAN diesel & turbo tier III valve (Group 1 - 4) certification (Provisional certificate of approval)
Registered selected products for gas turbine bleed valve development and signed a mutual growth agreement (with Korea Southern Power)
2017
Awarded commendation for Industrial Innovation Movement (by Korea Commission for Corporate Partnership)
Acquired KOSHA safety valve certification
Developed SCR-HP/LP/EGR valve products
Developed SCR & EGR system valve products
Received a new order for SCR-LP (by Hyundai Heavy Industries Engine & Machinery Division)
2016
Relocated and expanded the head office (Technology Industrial Complex, Uichang-gu, Changwon-si)
Designated as an Inno-Biz (by Small and Medium Business Administration)
Renewed venture enterprise certification (by Organization for Venture Enterprise Certification)
Registered as an engine company partner (Hyundai Heavy Industries Engine & Machinery Division)
2015
Receive a trade promotion commendation (by Ministry of Trade, Industry and Energy)
Registered as a shipbuilding partner (Samsung Heavy Industries, STX Shipbuilding, Hanjin Heavy Industries & Construction)
2014
Renewed Promising Export SME certification (by Gyeongsangnam-do Regional Small and Medium Business Administration)
Registered as a shipbuilding partner (Hyundai Mipo Dockyard, Daewoo Shipbuilding & Marine Engineering, Daehan Shipbuilding, Dae Sun Shipbuilding)
Established second factory
2013
Received a commendation in the start-up venture sector of the Gyeongsangnam-do Small and Medium Business Awards (by Small and Medium Business Administration)
Established a company-affiliated research institute.
Registered as a partner of SHI Offshore and participated in JAM project
Registered as a partner of STX Offshore and participated in GAZA project
2012
Selected as a promising export SME (by Gyeongsangnam-do Regional Small and Medium Business Administration)
Acquired venture enterprise certification (by Organization for Venture Enterprise Certification)
Acquired ISO 9001 certification: Quality Management System (by SBC Registrar)
Renewed ISO 14001 certification: Environmental Management System (by SBC Registrar)
2011
Changed company name (DH Controls Co., Ltd.)
Relocated and expanded the head office (Technology Industrial Complex, Uichang-gu, Changwon-si)
Developed the world's first screw down valve (Jointly developed by Hyundai Heavy Industries)
Developed transmitter product
2009
Established company (Dongheun Co., Ltd., Jung-gu, Busan, May 15, 2009)