SK ecoplant
Corporate brand
UnclaimedSouth Korean engineering, construction, environmental-services, and renewable-energy company affiliated with SK Group.
Last updated August 25, 2026
Overview
SK ecoplant is a South Korean engineering and construction company affiliated with SK Group. Its roots extend to 1962, when the business was established as Hyupwoo Industry. After being acquired by Seonkyung Group in 1977, it became Seonkyung Construction and later adopted the name SK Construction in 1984. The company developed as a general contractor and infrastructure developer, while also becoming associated with apartment construction under the SK View brand. The company’s activities have expanded beyond conventional building and civil engineering. It has accumulated capabilities in environmental management, including waste-incineration and landfill operations, and has pursued businesses connected with recycling, electronic-waste treatment, and resource circulation. This broadening of scope reflects a strategic shift from a primarily construction-oriented identity toward an environmental and energy-solutions platform. A prominent international infrastructure project was the Eurasia Tunnel in Istanbul, Turkey. SK ecoplant participated in the financing and construction of the undersea road tunnel, which links the Asian and European sides of the city. The tunnel opened in December 2016, and the company is scheduled to remain involved in its operation through 2041. The company has also used acquisitions to build positions in environmental technology and renewable-energy infrastructure. In November 2021, it acquired Samkang M&T, a South Korean shipbuilding and equipment company that had produced offshore-wind-related structures since the early 2010s. The subsidiary was renamed SK Oceanplant in January 2023, aligning it more closely with the group’s offshore-wind and clean-energy ambitions. In February 2022, SK ecoplant acquired TES, a Singapore-based company specializing in IT-asset disposition and electronic-waste management; TES became known as SK tes after the transaction. Under the SK ecoplant name, the company presents itself as an eco-friendly solution provider combining construction, environmental infrastructure, renewable energy, offshore wind, waste treatment, recycling, and related industrial capabilities. Its business remains connected to large-scale engineering and construction, but its current positioning places greater emphasis on decarbonization, circular-economy services, and clean-energy infrastructure. The available reference material does not establish a single comprehensive list of all current subsidiaries, markets, or financial results, so those details are not asserted here.
History
SK ecoplant traces its origins to Hyupwoo Industry, established in South Korea in 1962. The business entered the Seonkyung Group through an acquisition in 1977 and was renamed Seonkyung Construction. In 1984, it adopted the name SK Construction, reflecting its relationship with the group that later became SK Group. During this period, the company developed as an engineering and construction contractor and became known for residential development, particularly through the SK View apartment brand. The company’s construction activities extended into major civil and infrastructure projects. One of its most notable international undertakings was the Eurasia Tunnel in Istanbul, Turkey, an undersea road connection between the Asian and European sides of the city. SK ecoplant participated in the project’s financing and construction. The tunnel opened in December 2016, and the company is expected to operate it until 2041. This project illustrates the company’s role not only as a builder but also as a participant in large public-private infrastructure arrangements. Over time, SK ecoplant expanded into environmental management. Its related activities have included waste incineration and landfill operations, broadening the business beyond conventional construction. The company’s later corporate identity emphasizes environmental engineering, renewable energy, recycling, and resource circulation. This repositioning reflects an effort to connect its established project-development and engineering capabilities with businesses addressing waste treatment and the transition to lower-carbon infrastructure. Acquisitions became an important part of this transformation. In November 2021, SK ecoplant acquired Samkang M&T, a shipbuilding and industrial-equipment company that had manufactured offshore-wind-related structures since the early 2010s. The business was subsequently incorporated as a subsidiary and renamed SK Oceanplant in January 2023. Its offshore capabilities gave SK ecoplant a platform in the supply chain for offshore-wind development and other ocean-based infrastructure. In February 2022, SK ecoplant acquired TES, a Singapore-based company focused on IT-asset disposition and electronic-waste management. The transaction expanded the group’s presence in the collection, processing, and management of discarded electronics and related resources. TES became associated with the SK group under the name SK tes. Together with the company’s existing environmental businesses, this acquisition strengthened its stated direction toward circular-economy services. The name SK ecoplant signals the company’s more recent positioning. Rather than presenting itself solely as a general construction contractor, it combines construction and engineering with environmental infrastructure, electronic-waste management, renewable energy, and offshore wind. Its legacy residential and civil-engineering businesses remain part of its history, while its current strategic narrative centers on eco-friendly solutions and the development of businesses connected to resource recovery and clean energy. The supplied reference material does not provide enough information to document a complete chronology of all management appointments, financial performance, or additional acquisitions.
- 2023
Samkang M&T becomes SK Oceanplant
[1]The Samkang M&T subsidiary changes its name to SK Oceanplant.
- 2022
TES acquisition
[1]SK ecoplant acquires Singapore-based TES, expanding into electronic-waste management and IT-asset disposition.
- 2021
Samkang M&T acquisition
[1]SK ecoplant acquires Samkang M&T, adding offshore-wind-related manufacturing and marine-equipment capabilities.
- 2016
Eurasia Tunnel opens
[1]The Eurasia Tunnel in Istanbul opens after SK ecoplant’s participation in its financing and construction.
- 1984
Renamed SK Construction
[1]The company adopts the name SK Construction.
- 1977
Acquisition by Seonkyung Group
[1]The business is acquired by Seonkyung Group and renamed Seonkyung Construction.
- 1962
Hyupwoo Industry is established
[1]The company’s historical predecessor, Hyupwoo Industry, is established in South Korea.
Products and positioning
An SK Group-affiliated engineering and construction company repositioning itself as an environmental, circular-economy, and renewable-energy solutions provider.
Residential development
SK View
SK View is the company’s apartment-development brand. It represents SK ecoplant’s established residential-construction activity within South Korea and is one of the clearest consumer-facing expressions of its historical identity as a major construction and property-development company.
Transport infrastructure · 2016
Eurasia Tunnel
The Eurasia Tunnel is an undersea road tunnel in Istanbul connecting the Asian and European sides of the city. SK ecoplant participated in its financing and construction. The tunnel opened in December 2016, and the company is associated with its operation through 2041.
Environmental services
Environmental management services
SK ecoplant’s environmental-services activities include waste-incineration and landfill operations, alongside broader environmental engineering and resource-circulation capabilities. These businesses form a central part of the company’s transition from a conventional construction identity toward an eco-friendly solutions platform.
Electronic-waste management · 2022
SK tes
SK tes is the SK-associated identity of TES, the Singapore-based company acquired by SK ecoplant in February 2022. Its activities center on IT-asset disposition and electronic-waste management, supporting the collection, treatment, and recovery of value from discarded electronic equipment.
Offshore-wind infrastructure · 2023
SK Oceanplant
SK Oceanplant is the name adopted in January 2023 by the former Samkang M&T subsidiary. Its historical capabilities include shipbuilding, industrial equipment, and manufacturing structures for offshore wind power, giving SK ecoplant a platform in marine clean-energy infrastructure.
Brand decisions
2023
Rename Samkang M&T as SK OceanplantStrategyBackground
Following the 2021 acquisition, the subsidiary’s activities were being aligned with SK ecoplant’s offshore-wind and clean-energy strategy.
Action taken
The company changed the subsidiary’s name from Samkang M&T to SK Oceanplant.
Aftermath
The renamed subsidiary continued to represent SK ecoplant’s offshore-wind and ocean-based infrastructure capabilities.
2022
Acquire TESM&ABackground
The company was expanding its environmental portfolio into electronic-waste management and circular-economy services.
Action taken
SK ecoplant acquired TES, a Singapore-based IT-asset disposition and electronic-waste management company.
Aftermath
TES became part of the SK-associated environmental-services portfolio and was known as SK tes.
2021
Acquire Samkang M&TM&ABackground
SK ecoplant was broadening its business into renewable-energy infrastructure and sought capabilities related to offshore wind.
Action taken
The company acquired Samkang M&T, a shipbuilding and equipment company with offshore-wind manufacturing experience.
Aftermath
The acquired business became a subsidiary and was later renamed SK Oceanplant in 2023.
Recent events
- 2023
Samkang M&T renamed SK Oceanplant[1]
Leadership change
The subsidiary acquired in 2021 changed its name to SK Oceanplant, reflecting its connection with offshore-wind and ocean-based energy infrastructure.
- 2022
SK ecoplant acquires TES[1]
M&A
The company acquired Singapore-based TES, an IT-asset disposition and electronic-waste management business, strengthening its electronic-waste and resource-circulation activities.
- 2021
SK ecoplant acquires Samkang M&T[1]
M&A
SK ecoplant acquired Samkang M&T, a South Korean shipbuilding and equipment company with experience manufacturing structures for offshore wind power.
Sources2 sources
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