Hanjin Heavy Industries

Hanjin Heavy Industries (HHI) is a South Korean company primarily engaged in the design and construction of ships and offshore structures. Its core business includes naval vessel production for the Republic of Korea Navy, such as destroyers, frigates, and submarines. In addition to defense contracts, HHI builds commercial ships including container vessels, bulk carriers, and liquefied natural gas (LNG) carriers. The company also fabricates offshore platforms and related marine equipment for energy projects. These activities position HHI as an integrated shipbuilder serving both defense and civilian maritime markets.

Hanjin Heavy Industries is headquartered in South Korea, with its main shipyard facilities located in Busan. As a subsidiary of the Hanjin Group, it benefits from the group's broader industrial and logistics network. The company's shipyards have the capacity to construct large‑scale vessels, enabling it to compete in global shipbuilding markets. HHI supplies vessels to domestic naval forces as well as to international commercial operators, reflecting a dual‑market reach. Its involvement in national defense projects underscores its role within South Korea's defense industrial base.

A distinguishing attribute of HHI is its specialization in high‑technology warships, incorporating advanced combat systems and stealth features. The firm possesses integrated capabilities across steel cutting, hull assembly, outfitting, and sea‑trials, allowing end‑to‑end project execution. Compliance with stringent naval standards and export controls shapes its engineering and quality‑assurance processes. Ownership by the Hanjin Group ties HHI to a conglomerate with interests in shipping, logistics, and aerospace, providing potential synergies. The 2016 cyberattack attributed to North Korean state‑sponsored actors highlighted HHI's significance as a target for attempts to acquire military technology.