HD Hyundai is one of the largest South Korean conglomerates engaged in shipbuilding, heavy equipment, machinery, and the petroleum industry. 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. HD Hyundai rebranded its name of Hyundai Heavy Industries Group to 'HD Hyundai' in 2022 to mark its 50th anniversary. Wikipedia