HD Hyundai Infracore

HD Hyundai Infracore was a South Korean industrial manufacturer specializing in construction machinery and engines. Its business developed from a machine-building enterprise founded in 1937 into one of South Korea's most internationally active heavy-equipment groups. Over its corporate history, the company operated under several names and ownership structures, including Daewoo Heavy Industries, Doosan Infracore, and finally HD Hyundai Infracore. The company's principal equipment portfolio included excavators, wheel loaders, articulated dump trucks, and related machinery used in construction, mining, quarrying, infrastructure development, agriculture, forestry, and material handling. It also produced diesel engines and other powertrain products for commercial, industrial, and military applications. Through manufacturing facilities, subsidiaries, dealers, and distribution partners, the business served customers across South Korea and international markets. The company became part of the Doosan group after the restructuring of Daewoo following the 1997 Asian financial crisis. Under Doosan ownership, it pursued international expansion through acquisitions. These included the purchase of Yantai Yuhua Machinery, a Chinese wheel-loader manufacturer, in 2007; the acquisition of Bobcat and related construction-equipment businesses from Ingersoll Rand later that year; and the purchase of Norwegian articulated-dump-truck maker Moxy Engineering in 2008. The Bobcat assets were excluded from the later sale of Doosan Infracore to Hyundai. Doosan Infracore was acquired by Hyundai Heavy Industries Group, subsequently rebranded as HD Hyundai, in 2021. HD Hyundai bought approximately 35 percent of the company for 850 billion won, while Doosan Bobcat's separate stake was not included in the transaction. The acquisition added a major construction-equipment and engine business to HD Hyundai's industrial portfolio and supported the group's effort to build a broader global machinery platform. In 2023, the company adopted the corporate name HD Hyundai Infracore and introduced Develon as the principal brand for its construction-equipment business. The rebranding aligned the company with the wider HD Hyundai identity while giving its machinery products a distinct international market name. The business continued to manufacture and market excavators, loaders, dump trucks, engines, and associated services under the new structure. According to the referenced account, HD Hyundai Infracore merged with HD Hyundai Construction Equipment in January 2026. This ended its existence as a separate corporate entity, although its product technologies, manufacturing operations, distribution relationships, and Develon brand heritage continued within HD Hyundai's consolidated construction-equipment activities.

The corporate lineage of HD Hyundai Infracore reaches back to 1937, when Chosun Machine Works was established in Korea during the period of Japanese rule. After Japan's withdrawal, the enterprise was nationalized and reorganized. In 1963 it became Hankook Machine Industrial, a public company, and in 1969 it was privatized through a sale to Shinjin Group. The company began diesel-engine production in 1975 with financial support from the German government and technical cooperation with MAN SE. Weak domestic demand and unstable management later created financial difficulties, and the business returned to the control of a government-related bank. In 1976, Daewoo Industrial and affiliated companies acquired a 44.8 percent interest and renamed the enterprise Daewoo Heavy Industries. The company subsequently developed machinery and engine operations alongside Daewoo's other industrial businesses. The 1997 Asian financial crisis caused the Daewoo group to collapse and led to a broad restructuring. Daewoo Heavy's shipbuilding and machinery operations were separated into independent entities, including Daewoo Shipbuilding & Marine Engineering and Daewoo Heavy Industries & Machinery. In 2005, Korea Development Bank and Korea Asset Management Corporation selected a consortium led by Doosan Heavy Industries as the preferred bidder for Daewoo Heavy Industries & Machinery. After the transaction was completed, the company was renamed Doosan Infracore. Under Doosan, it expanded its construction-equipment business through international acquisitions. In 2007 it purchased Yantai Yuhua Machinery in China, a wheel-loader manufacturer. Later that year, Doosan acquired Bobcat and other construction-equipment units from Ingersoll Rand in a transaction valued at 4.9 billion U.S. dollars. In 2008, Doosan's European subsidiary acquired Norwegian articulated-dump-truck manufacturer Moxy Engineering for 55 million euros. Doosan Group later experienced a liquidity crisis amid an economic slowdown and declining orders. To strengthen its finances, Doosan decided to sell its interest in Doosan Infracore. Hyundai Heavy Industries Group acquired approximately 35 percent of Doosan Infracore in 2021 for 850 billion won. The transaction excluded Doosan Infracore's 51 percent stake in Doosan Bobcat, which remained outside the acquired business. In 2023, the company changed its corporate name to HD Hyundai Infracore as part of the wider rebranding of Hyundai Heavy Industries Group as HD Hyundai. It also introduced Develon as the brand identity for its construction machinery. Develon products included excavators, wheel loaders, articulated dump trucks, and related equipment, while the company retained engine activities serving commercial, industrial, and military customers. In January 2026, HD Hyundai Infracore merged with HD Hyundai Construction Equipment, another construction-machinery company within the HD Hyundai group. The merger concluded the company's separate corporate existence and placed its activities within HD Hyundai's combined construction-equipment structure.

1. 2026Merged into HD Hyundai Construction Equipment

   HD Hyundai Infracore merged with HD Hyundai Construction Equipment, ending its status as a separate company.

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2. 2023Adopts the HD Hyundai Infracore name and Develon brand

   The company adopted its final corporate name and launched Develon as its construction-equipment brand.

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3. 2021Joins Hyundai Heavy Industries Group

   Hyundai Heavy Industries Group acquired approximately 35 percent of Doosan Infracore for 850 billion won.

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4. 2008Acquires Moxy Engineering

   Doosan's European subsidiary acquired Norwegian articulated-dump-truck manufacturer Moxy Engineering.

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5. 2007Expands through Yantai Yuhua and Bobcat acquisitions

   Doosan Infracore acquired Chinese wheel-loader maker Yantai Yuhua Machinery and later purchased Bobcat and related construction-equipment units from Ingersoll Rand.

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6. 2005Acquired by Doosan

   A consortium led by Doosan Heavy Industries acquired the restructured Daewoo machinery business, which was renamed Doosan Infracore.

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7. 1976Becomes Daewoo Heavy Industries

   Daewoo Industrial and affiliated companies acquired a major stake and changed the company's name to Daewoo Heavy Industries.

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8. 1975Begins diesel-engine production

   The company began producing diesel engines with German government support and technical cooperation from MAN SE.

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9. 1963Reorganized as Hankook Machine Industrial

   The enterprise was nationalized and reorganized as Hankook Machine Industrial, becoming a public company.

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10. 1937Chosun Machine Works is established

    The company's historical lineage begins with the establishment of Chosun Machine Works in Korea.

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A global heavy-equipment and powertrain manufacturer combining construction machinery, engine technology, international distribution, and large-scale industrial manufacturing. In its final operating phase, the company used Develon as the customer-facing construction-equipment brand within HD Hyundai.

• ExcavatorsConstruction machinery

  Excavators were a core part of the company's construction-equipment portfolio. The range served earthmoving, infrastructure, mining, quarrying, utility, and general construction applications, with product classes spanning different operating sizes and working environments. After the 2023 rebranding, these machines were marketed primarily under the Develon name.

• Wheel loadersConstruction machinery

  Wheel loaders formed another major equipment line, supporting loading, stockpiling, aggregate handling, site preparation, and material movement. The company's international position in loaders was strengthened by its 2007 acquisition of Yantai Yuhua Machinery in China. Later-generation machines were sold through the Develon brand.

• Articulated dump trucksConstruction machinery

  Articulated dump trucks were designed for moving soil, rock, aggregates, and other bulk materials over construction, quarry, mining, and infrastructure sites. The company's presence in this segment was expanded through the 2008 acquisition of Norwegian manufacturer Moxy Engineering and was later incorporated into the Develon equipment offering.

• Commercial and industrial diesel enginesEngines and power systems1975

  Engine operations were part of the company's business from its diesel-production activities in the 1970s. The company supplied power units and related systems for commercial and industrial uses, complementing its construction-machinery operations and providing a separate technology and component base.

• Military enginesDefense power systems

  The company also manufactured engines for military applications. These products placed HD Hyundai Infracore within South Korea's broader defense-industrial ecosystem, although the referenced material does not specify individual engine models, platforms, or contract customers.

• 2026Merger with HD Hyundai Construction EquipmentM&A

  HD Hyundai operated HD Hyundai Infracore and HD Hyundai Construction Equipment as related construction-machinery businesses.

  What changed. HD Hyundai Infracore was merged into HD Hyundai Construction Equipment in January 2026.

  Aftermath. The merger ended HD Hyundai Infracore's independent corporate existence and consolidated the group's construction-equipment activities.

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• 2023Corporate and product-brand rebrandingStrategy

  The change followed Hyundai Heavy Industries Group's broader transition to the HD Hyundai identity.

  What changed. Doosan Infracore became HD Hyundai Infracore and introduced Develon as the customer-facing construction-equipment brand.

  Aftermath. The company continued operating its machinery and engine businesses within HD Hyundai while presenting construction equipment under the Develon name.

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• 2021Hyundai Heavy Industries Group acquires Doosan InfracoreM&A

  Doosan Group pursued asset sales after a liquidity crisis associated with declining orders and economic pressure.

  What changed. Hyundai Heavy Industries Group purchased approximately 35 percent of Doosan Infracore for 850 billion won.

  Aftermath. The company entered the HD Hyundai group, while the 51 percent interest in Doosan Bobcat was not included in the transaction.

  Purchase price. 850 billion KRW (2021)

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• 2007Acquire Bobcat and related construction-equipment businessesM&A

  Doosan Infracore sought to expand its global construction-equipment presence and acquired Bobcat and other construction-equipment units from Ingersoll Rand.

  What changed. The acquisition was completed for approximately 4.9 billion U.S. dollars and added established international equipment operations to Doosan's portfolio.

  Aftermath. The Bobcat assets became a significant part of the wider Doosan construction-equipment structure, but Doosan Infracore's stake in Doosan Bobcat was excluded from Hyundai's 2021 acquisition.

  Acquisition value. 4.9 billion USD (2007)

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• 2026HD Hyundai Infracore merges with HD Hyundai Construction Equipment

  HD Hyundai Infracore was merged into HD Hyundai's existing construction-equipment company, ending its operation as a separate corporate entity.

  M&A
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• 2023Doosan Infracore becomes HD Hyundai Infracore and introduces Develon

  Following HD Hyundai's corporate rebranding, Doosan Infracore adopted the name HD Hyundai Infracore and began using Develon as the brand for its construction-equipment business.

  Product launch
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• 2021HD Hyundai acquires control of Doosan Infracore

  Hyundai Heavy Industries Group acquired approximately 35 percent of Doosan Infracore for 850 billion won. The transaction did not include Doosan Infracore's 51 percent stake in Doosan Bobcat.

  M&A
  Source

1. HD Hyundai Infracore
2. HD Hyundai Infracore official website