Who is the largest manufacturer of stainless steel | Manufacturers & Official Website 2025

Who is the largest manufacturer of stainless steel?

The surge in infrastructure projects, rising automotive production, and growing investment in renewable energy systems—especially solar and wind—are further propelling the market forward. Trends such as the shift toward lightweight and high-performance alloys, circular economy practices, and innovations in stainless steel manufacturing techniques are also reshaping the landscape.

List of the manufacturer of stainless steel

1. Commercial Metals Company (CMC)

A leading North American stainless and rebar manufacturer with a 6.1 Mt shipment capacity, operating scrap-based mills and fabrication facilities.

2. POSCO

South Korea's largest steel producer, POSCO is a major force in the stainless steel segment. It operates integrated mills known for high-quality output and sustainability initiatives.

3. China Baowu Steel Group

As the world's biggest steelmaker, Baowu commands over 15 % of global rebar and stainless production. It spans iron ore mining through steel finishing with massive global reach.

4. Acerinox S.A.

One of the world's leading stainless steel companies with a capacity of ~3.5 Mtpa. It operates factories across Europe and the U.S. and focuses on innovation in high performance alloys.

5. Outokumpu Oyj

Europe's largest stainless producer and global leader in sustainable alloys. It produces nearly all steel from recycled materials and supplies markets across applications.

6. Nippon Steel Corporation

One of the world's top steelmakers, Nippon Steel leads in stainless steel production with advanced, low carbon processes. Its recent acquisition of U.S. Steel brings its annual capacity near 86 Mt.

7. ArcelorMittal

A global steel giant, ArcelorMittal is a top-tier stainless steel producer using advanced alloying and coating technologies for infrastructure and automotive sectors.

8. Jindal Stainless Group

India's largest stainless steel maker with ~2.9 Mtpa capacity across Hisar and Odisha. It serves domestic and international markets and is among the world's top five stainless producers.

9. Tata Steel Limited

A major Indian steel company producing austenitic, duplex, and ferritic stainless steels. It caters to sectors like automotive, infrastructure, and consumer goods.

10. Nucor Corporation

The largest U.S. steelmaker and key stainless supplier. Nucor uses electric-arc-furnace (EAF) recycling for sustainable production and offers a wide rebar line.

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