Aprogen Medicines Inc. designs, manufactures, and maintains plant facilities for steelwork, petrochemistry, shipbuilding, power plant, and LNG base industries in South Korea; offers thermal and cold spray services, clad rolls, clad plates, wear plates, clad pipes and fittings, and plasma transferred arcs; provides the Nukon system, a special heat-preservation solution for pressurized water reactor power plant containment buildings, foamglas cellular glass insulation products, and fireproof insulation works for POSCO furnaces and boilers. The company, founded in 1971 and headquartered in Seongnam-si, Gyeonggi-do, operates primarily within the industrials sector, serving heavy industry clients across domestic markets. Formerly known as Aprogen KIC Inc., it changed its name to Aprogen Medicines Inc. in April 2021 to reflect strategic evolution; completed the acquisition of remaining shares in Aprogen Inc. in July 2022 through a merger; and agreed in May 2025 to acquire an additional 20.06% stake in AP Healthcare Inc. from Aprogen Biologics Inc. for KRW 58.4 billion, with completion expected by August 2025.