OverviewData Room


Founded in 1976 as a firm specializing in telecommunications power supply systems, DongAh Elecomm offers all types of energy product solutions, including power converters, rectifiers, board-mounted power modules, and remote monitoring systems.


A leader in the telecommunications industry, we have developed and supplied all types of embedded power products for asynchronous transfer mode (ATM) switching systems, CDMA mobile communications systems (both cellular and PCS), and IMT-2000’s global mobile telecommunications standards. One of our key achievements was the development of products to support the nationwide TDX program for a Korean electronic switching system. Our current research and development include high efficiency power solutions for telecom and industrial applications, ballast water treatment systems, 4G and 5G LTE Power, and EV Charging station power.


  • Manufacturing Facility:    Plottage: 58,991 m2, Building: 65,338 m2
  • Range of Products:    Rectifier, Converter, BMP, RMS, and many others.
  • Annual Production Capacity:    Rectifier: 30,000 indoor and outdoor cabinets Converter: 120,000 units BMP: 500,000 units


In Korea, DongAh Elecomm supplies 85% of the market demand for power supply systems for data communication services. Our power supply products bring communications to 50 million users of wireline and wireless services worldwide. We export our power supply products to 30 countries.


DongAh Elecomm developed the DC/DC converter for SP-30, the Chinese electronic switching system. Vietnam Post and Telecommunications has designated DongAh Elecomm power systems as the national standard. Our power supply systems were crucial to Australia’s CDMA mobile communications system during the XXVII Olympics, and they continue to operate smoothly.


We are currently developing products for world leaders in communications interested in our highly advanced technologies. We meet international standards for quality management (ISO 9001). With over one hundred research staff members, DongAh Elecomm is ready to develop customized and standard power supply products to fit any condition in any environment with world-class technology and service.


Certifications & Awards
As a reflection of our commitment to quality and customer satisfaction, DongAh Elecomm is committed to continual process improvement through the operation to internationally recognized standards. Our commitment has resulted in recognition as a valued supplier by a number of our customers.

  • Certifications and customer recognitions include:
  • DongAh Elecomm Korea : ISO 9001 Certified – May 1995
  • Upgraded to ISO 9001 /TL9000 – July 2003
  • Samsung : CQIS – Jan 2005
  • ISO 14000 Certified – Aug 2005
  • Siemens: Top +, Class-A Supplier – Sept 2004/ Sept 2005
  • Samsung: SQIS Class-A – Sept 2005
  • Named as “Strategic Supplier” for Siemens Ultrasound Division – Jan 2009
  • Recognized by Samsung Electronics for “Innovation in Quality” – Jan 2011
  • Named “Best Partner of the Year” for the sixth consecutive year by Korea Telecom (KT) – Jan 2011
  • DongAh Elecomm Vietnam : TCVN ISO 9001:2008 / ISO 9001:2008 Certified – Jan 2010


16, Namgok-ro, Yangji-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea






Komachine Inc.
Head Office:
Ace Dongbaek Tower 1-1101, 16-4,
Dongbaekjungang-ro 16beon-gil, Giheung-gu,
Yongin City, Gyeonggido, South Korea 17015
Branch Office:
606, Seoul Stratup Center, 10,
Noryangjin-ro, Dongjak-gu, Seoul, South Korea 06938
CEOCharlie Park
Corporate #535-86-00664

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