The Southeast Asia Iron and Steel Casting Market was valued at USD 12.35 Billion in 2024 and is projected to reach USD 16.74 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.2% during the forecast period (2024–2030). This expansion is fueled by infrastructure development, automotive sector growth, and industrialization across Thailand, Indonesia, Vietnam, and Malaysia.

As Southeast Asia emerges as a global manufacturing hub, these casting specialists are delivering high-quality gray iron, ductile iron, and steel components for critical applications. This report analyzes the Top 10 Companies in the Southeast Asia Iron and Steel Casting Industry—the foundries and mills powering the region’s economic transformation through material innovation and production excellence.

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🔟 1. PT Krakatau Steel (Persero) Tbk

Headquarters: Cilegon, Indonesia
Key Offering: Steel Plate Castings, Structural Components

Indonesia’s flagship steel producer operates one of Southeast Asia’s largest integrated steel complexes with an annual capacity exceeding 3 million tonnes. Krakatau Steel supplies specialized castings for infrastructure, shipbuilding, and heavy equipment manufacturers.

Capacity Expansion:

• New 1.2 million ton/year hot strip mill operational since 2023
• Strategic partnership with POSCO for automotive-grade steel
• IDR 15 trillion investment in rolling mill upgrades (2024-2027)

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9️⃣ 2. NatSteel Holdings Pte Ltd

Headquarters: Singapore
Key Offering: Reinforcing Steel, Pre-engineered Structures

This Singaporean steel solutions leader supplies critical casting components to major infrastructure projects across ASEAN. The company operates advanced electric arc furnace technology with stringent quality control systems.

Notable Projects:

• Primary supplier for Changi Airport Terminal 5 development
• Advanced automation in their Jurong casting facility

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8️⃣ 3. Gunawan Dianjaya Steel Tbk

Headquarters: Jakarta, Indonesia
Key Offering: Steel Billets, Construction Castings

This Indonesian steel specialist has modernized its Jawa Barat facility to produce 600,000 tons annually of high-quality cast products for construction and industrial applications.

Technical Capabilities:

• Advanced continuous casting technology
• 15% efficiency improvement in 2023 through process optimization

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7️⃣ 4. Lion Group

Headquarters: Kuala Lumpur, Malaysia
Key Offering: Ductile Iron Pipes, Automotive Castings

Malaysia’s largest diversified steel group operates state-of-the-art foundries producing precision components for regional automakers and water infrastructure projects.

Market Leadership:

• 40% share in ASEAN ductile iron pipe market
• Supplying major regional automakers including Proton and Perodua

Download FREE Sample Report: Southeast Asia Iron and Steel Casting Market – View in Detailed Research Report

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6️⃣ 5. PT. Growth Asia

Headquarters: Bekasi, Indonesia
Key Offering: Automotive Components, Machinery Parts

Growth Asia specializes in thin-wall casting technology for vehicle lightweighting, serving Japanese and European automakers with Indonesia production bases.

Recent Developments:

• 35% production capacity increase in 2023
• New technical center for casting simulation and optimization

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5️⃣ 6. CSC Steel Holdings Berhad

Headquarters: Kuala Lumpur, Malaysia
Key Offering: Cold Rolled Coils, Precision Castings

CSC Steel operates Malaysia’s most advanced continuous galvanizing lines, producing corrosion-resistant steel castings for building materials and appliances.

Quality Certifications:

• ISO 9001 and IATF 16949 certified facilities
• 60,000 ton/year capacity expansion completed in 2022

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4️⃣ 7. Southern Steel Berhad

Headquarters: Penang, Malaysia
Key Offering: Reinforcing Bars, Structural Shapes

Southern Steel’s 1.4 million ton/year melting capacity supports major infrastructure projects across Malaysia with earthquake-resistant steel components.

Key Projects:

• Primary supplier for East Coast Rail Link
• Partner in Malaysia’s industrial zone developments

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3️⃣ 8. PT. Jakarta Cakratunggal Steel Mills

Headquarters: Jakarta, Indonesia
Key Offering: Wire Rods, Special Steel Castings

This Indonesian steel specialist focuses on high-carbon steel castings for automotive springs and industrial fasteners, with proprietary alloy formulations.

Technical Advantages:

• Patented micro-alloy steel technology
• Strategic technical partnerships with Japanese mills

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2️⃣ 9. Kin Kee Steel Sdn Bhd

Headquarters: Selangor, Malaysia
Key Offering: Merchant Bars, Construction Castings

Kin Kee operates Malaysia’s most efficient scrap-based steel making facilities, producing quality cast products for the regional construction sector.

Recent Investments:

• RM 180 million modernization completed in 2023
• New automated quality control systems implemented

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1️⃣ 10. Eastern Steel Sdn Bhd

Headquarters: Terengganu, Malaysia
Key Offering: Hot Rolled Coils, Heavy Structural Castings

Eastern Steel’s integrated complex in East Malaysia features cutting-edge DRI technology, producing 1.8 million tons annually of high-strength steel castings.

Capacity Highlights:

• Direct Reduced Iron plant operational since 2022
• Key supplier for Petronas offshore platforms

Get Full Report Here: Southeast Asia Iron and Steel Casting Market – View in Detailed Research Report

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🏭 Outlook: Southeast Asia Iron and Steel Casting Evolution

The regional casting industry is transforming through technological adoption and sustainable production methods to meet growing manufacturing demands across ASEAN nations.

📈 Key Market Developments:

• 35% projected growth in automotive casting demand by 2026
• Shift toward high-strength, lightweight materials in construction
• Increasing adoption of Industry 4.0 in foundry operations
• Development of low-carbon steel casting processes

Get Full Report Here: Southeast Asia Iron and Steel Casting Market – View in Detailed Research Report

These market leaders are not just supplying cast components—they’re engineering the foundation for Southeast Asia’s continued industrial advancement.