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 growth is driven by rapid industrialization, infrastructure development, and increasing demand from automotive and construction sectors across Thailand, Indonesia, and Vietnam.
As Southeast Asia emerges as a manufacturing powerhouse, iron and steel casting companies are playing a pivotal role in supplying critical components for diverse industries. In this blog, we profile the Top 10 Companies in the Southeast Asia Iron and Steel Casting Industry—key players shaping the region’s metal manufacturing landscape through innovation, capacity expansion, and strategic partnerships.
🔟 1. PT Krakatau Steel (Persero) Tbk
Headquarters: Cilegon, Indonesia
Key Offering: Steel billets, slabs, hot-rolled coils, steel castings
As Indonesia’s largest integrated steel producer, Krakatau Steel dominates the regional casting market with an annual capacity exceeding 3 million tons. The company supplies critical components to automotive, construction, and heavy machinery sectors across ASEAN.
Innovation Initiatives:
- Strategic partnership with POSCO for advanced steel technologies
- Expanding foundry capabilities for specialized castings
- Implementing Industry 4.0 in production processes
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9️⃣ 2. NatSteel Holdings Pte Ltd
Headquarters: Singapore
Key Offering: Reinforcing steel bars, steel billets, customized castings
NatSteel is Singapore’s leading steel producer with operations across Southeast Asia. The company specializes in high-quality steel castings for infrastructure projects and industrial applications.
Innovation Initiatives:
- Advanced simulation-based casting design
- Lean manufacturing implementation
8️⃣ 3. Gunawan Dianjaya Steel Tbk
Headquarters: Jakarta, Indonesia
Key Offering: Steel pipes, structural steel, custom cast components
Gunawan Dianjaya Steel has emerged as a key player in Indonesia’s steel casting sector, supplying critical components to construction and energy industries across the archipelago.
Innovation Initiatives:
- Expanding capacity for large-scale steel castings
- Investment in automated foundry equipment
7️⃣ 4. Lion Group
