HD Hyundai Heavy Industries Ulsan Shipyard

HD Hyundai Heavy Industries operates its main shipyard at Ulsan, South Korea, where it builds merchant vessels, naval ships, offshore energy facilities and marine engines. Founded in 1972, the yard reached first place in world shipbuilding volume in 1983 and states it has delivered around 2,300 vessels to 344 owners in 51 countries, including the first LNG carrier built in Korea and world-first methanol and ammonia dual-fuel ships. Its business units cover shipbuilding, naval and mid-size vessels (including MRO), marine energy (FPSO, FPS, fixed platforms, floating offshore wind and offshore substations) and engines and machinery, where it produces MAN and WinGD large engines plus its own HiMSEN medium-speed engine. Company data on the site lists roughly 19,058 employees, an 8 million sq m plant and 2025 consolidated revenue of KRW 22.67 trillion.

Established in 1972 on Mipo Bay in Ulsan, HD Hyundai Heavy Industries built its shipyard and its first two 260,000-ton VLCCs simultaneously, completing both in 2 years and 3 months. The company became the world's top shipbuilder by output in 1983, passed 100 million GT of ships built in 2012 and 2,000 vessels in 2015, and reports deliveries of some 2,300 ships to 344 owners across 51 countries by 2025. Following the December 2025 merger with HD Hyundai Mipo, it operates shipbuilding, naval & mid-size ship, marine energy, and engine & machinery divisions. Renamed HD Hyundai Heavy Industries in 2023; co-CEOs are Lee Sang-kyun and Keum Seok-ho.

Services

Newbuilding of merchant, gas and special-purpose vessels
Naval shipbuilding and export naval programmes; maintenance, repair and overhaul (MRO) and mid-life upgrades
Offshore EPCIC: design, procurement, fabrication, transport, installation and commissioning of fixed and floating oil and gas facilities
Floating offshore wind substructures (Hi-Float) and offshore substations; CCS facilities; SMR reactor vessel fabrication
Marine and land-based engines: MAN and WinGD large engines, HiMSEN medium-speed engines, propellers and shafting, crankshafts, SCR NOx reduction systems, marine pumps, diesel and hybrid power plants

Facilities

Approximately 8 million sq m plant at Ulsan
10 large building docks and 9 goliath cranes in the shipbuilding division
1,000,000-ton class dry dock (H dock), 10,000-ton offshore crane and two 1,600-ton goliath cranes in the marine energy division
Engine, propeller and crankshaft manufacturing shops
Roughly 19,058 employees including some 3,400 design staff

Vessel Types

Container ships, including methanol dual-fuel vessels up to 16,200 TEU
LNG carriers, LNG-FSRU, LNG bunkering vessels, LPG, LEG, ethane and liquefied CO2 carriers
Crude oil tankers, chemical/product tankers, bulk carriers
Car carriers (PCTC, RORO, CON-RO), RO-PAX ferries, cable-laying vessels, icebreakers, offshore support vessels
Drillships and semi-submersible drilling rigs
Naval: destroyers including Aegis, frigates, submarines, patrol and offshore patrol vessels, minelayers, landing ships, logistics support and training ships

Location

Head office and shipyard: 1000 Bangeojinsunhwan-doro, Dong-gu, Ulsan, South Korea