Marine Radio Company Limited (MRC) has been producing the internal and external communication systems and supplying the products to the shipyards around the world, contributing to the South Korean shipbuilding industry for 55 years since the company was established in 1961 when there was no infrastructure for all industries. From 1988 when MRC started to build the intercom products in-house, MRC made a record of supplying at least one of the intercom systems including Public Address/General Alarm (PAGA), Auto Telephone System (PABX), Marine Clock System (MCS), Communal Aerial System (CAS), Computer Network System (CNS), CCTV, SAT-TV to 8 000 vessels in July 2016. Supplying such systems to 8 000 vessels in just 26 years from 1990 to July 2016 would be a world record of its kind. Also, that includes supplying to 754 vessels in 2011 alone, which is another record of MRC producing the most in a single year.

MRC is the only company that supplies equipment to drill ships as well as offshore structures and vessels, and has a reference of having supplied to 127 drill ships as well as 119 Offshore structures and vessels (FPSO, FSRU, FSO, FRU, drilling rig, jack up rig, offshore supply vessel, platform supply vessel, AHTS, etc.). In order to do so, MRC manufactures explosion-proof CCTV systems and explosion-proof speakers that were certified Explosion Proof from DNV.