HD Hyundai (Korean: HD현대) is one of the largest South Korean conglomerates engaged in shipbuilding, heavy equipment, machinery, and the petroleum industry.

[1] HD Hyundai started its shipbuilding business in a small village in Ulsan, South Korea, in 1972 and grew into a global heavy industries company.

It is a major supplier in the heavy industries and energy sector, ranging from shipbuilding and marine engineering to oil refining, petrochemicals, and smart energy management businesses.

[4] HD Hyundai XiteSolution is another sub-holding company that oversees heavy equipment business, having HD Hyundai Infracore and HD Hyundai Construction Equipment as subsidiaries.

[5] HD Hyundai Oilbank is one of the four major oil refiners in South Korea, along with SK Energy, GS Caltex, and S-Oil.