Top 10 Companies in the South Korea Marine Mining Market (2026): Market Leaders Powering Global Marine Resources

The South Korea Marine Mining market size was valued at USD 31.2 million in 2024 and is projected to reach USD 50.3 million by 2030, at a CAGR of 8.3% during the forecast period 2024-2030. Extraction of mineral resources from the ocean, including shallow water and deep-sea mining activities, is expanding due to growing demand for rare earth elements and other marine minerals. Technological advancements in underwater mining systems drive market growth.

South Korea Marine Mining Market – View in Detailed Research Report

Marine Mining involves the extraction of mineral resources from the ocean, encompassing shallow water and deep-sea mining activities. The sector is pivotal for securing critical minerals such as cobalt, nickel, and rare earths essential for high-tech and green technologies.

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🔟 10. Korea Institute of Ocean Science and Technology (KIOST)

Headquarters: Seoul, South Korea

Key Offering: Marine mineral exploration, data analytics, R&D for underwater mining.

KIOST leads research in marine geology and technology, providing critical data for exploration and sustainable mining practices. Its advanced seismic and sonar systems enhance resource identification and environmental monitoring.

Sustainability & Growth Initiatives:

• Development of eco-friendly exploration tools.
• Collaboration with industry for responsible mining standards.
• Investment in AI-driven predictive modeling for resource mapping.

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9️⃣ 9. S-OIL Corporation

Headquarters: Seoul, South Korea

Key Offering: Energy solutions, marine logistics, and offshore operations.

S-OIL extends its expertise in energy to support marine mining logistics, ensuring efficient transport of minerals and integration with global supply chains.

Sustainability & Growth Initiatives:

• Adoption of green shipping technologies.
• Partnerships for carbon-neutral transport.
• Investment in renewable energy for offshore platforms.

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8️⃣ 8. Dongwon Industries

Headquarters: Busan, South Korea

Key Offering: Marine engineering, equipment manufacturing, and offshore services.

Dongwon Industries supplies specialized equipment for deep-sea mining, including remotely operated vehicles (ROVs) and subsea infrastructure, enhancing operational efficiency.

Sustainability & Growth Initiatives:

• Development of low-impact mining tools.
• Implementation of circular economy practices.
• Research into biodegradable marine equipment.

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7️⃣ 7. Korea Zinc Co., Ltd.

Headquarters: Seoul, South Korea

Key Offering: Metal production, mining services, and alloy development.

Korea Zinc leverages its metallurgical expertise to process marine minerals into high-value alloys, supporting industries such as electronics and automotive.

Sustainability & Growth Initiatives:

• Recycling of marine metal waste.
• Investment in low-carbon smelting technologies.
• Strategic partnerships for rare earth supply chains.

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6️⃣ 6. Hanjin Heavy Industries

Headquarters: Incheon, South Korea

Key Offering: Shipbuilding, offshore engineering, and marine equipment.

Hanjin Heavy Industries designs and constructs vessels tailored for marine mining operations, integrating advanced navigation and safety systems.

Sustainability & Growth Initiatives:

• Eco-friendly vessel design.
• Use of alternative fuels in ship propulsion.
• Collaboration on sustainable offshore projects.

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5️⃣ 5. STX Offshore & Shipbuilding

Headquarters: Busan, South Korea

Key Offering: Offshore platforms, drilling rigs, and marine equipment.

STX provides robust offshore platforms equipped with cutting-edge ROVs and seismic systems, enabling deep-water exploration and extraction.

Sustainability & Growth Initiatives:

• Development of hybrid power systems.
• Adoption of digital twins for platform optimization.
• Investment in renewable energy integration.

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4️⃣ 4. Daewoo Shipbuilding & Marine Engineering Co., Ltd.

Headquarters: Geoje, South Korea

Key Offering: Shipbuilding, marine engineering, and offshore solutions.

Daewoo delivers specialized vessels and equipment for marine mining, emphasizing reliability and technological innovation.

Sustainability & Growth Initiatives:

• Implementation of carbon capture in ship manufacturing.
• Development of energy-efficient propulsion systems.
• Partnerships for sustainable marine infrastructure.

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3️⃣ 3. Samsung Heavy Industries

Headquarters: Geoje, South Korea

Key Offering: Heavy industrial equipment, offshore platforms, and marine technology.

Samsung Heavy Industries supplies advanced marine equipment and offshore platforms, integrating ROVs and sonar systems for efficient resource extraction.

Sustainability & Growth Initiatives:

• Investment in low-emission equipment.
• Digitalization of marine operations.
• Research into sustainable mining practices.

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2️⃣ 2. Hyundai Heavy Industries

Headquarters: Ulsan, South Korea

Key Offering: Shipbuilding, offshore engineering, and marine technology.

Hyundai Heavy Industries provides cutting-edge vessels and ROVs for marine mining, focusing on safety and operational efficiency.

Sustainability & Growth Initiatives:

• Development of green ship technologies.
• Implementation of AI for operational optimization.
• Collaboration on marine conservation projects.

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1️⃣ 1. POSCO

Headquarters: Seoul, South Korea

Key Offering: Steel production, mining services, and metal solutions.

POSCO is a leading steelmaker that also engages in marine mining operations, leveraging its metallurgical expertise to process extracted minerals into high-grade steel.

Sustainability & Growth Initiatives:

• Zero-emission steel production.
• Investment in circular economy practices.
• Strategic partnerships for rare earth supply chains.

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🌍 Outlook: The Future of South Korea Marine Mining

The South Korea Marine Mining market is poised for robust growth, driven by technological innovation and strategic investments in sustainable mining practices. The sector is expected to become a key supplier of critical minerals for global supply chains, particularly in the electronics and renewable energy industries.

📈 Key Trends Shaping the Market:

• Rapid expansion of ROV and sonar technologies for deeper exploration.
• Regulatory focus on environmental impact and responsible mining.
• Increased collaboration between government, academia, and industry.
• Integration of AI and digital twins for operational efficiency.
• Growth in demand for cobalt-rich ferromanganese crusts and polymetallic nodules.

The companies listed above are not only leaders in marine mining but also pioneers in advancing the sustainability and efficiency of offshore resource extraction.