South Korea

Top 3 largest South Korean Companies in the Steel industry by Market Cap

This is the list of the largest public listed companies in the Steel industry from South Korea by market capitalization with links to their reference stock.

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Top Steel Companies from South Korea as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
1 POSCO $15.60 B South Korea South Korean Basic Materials South Korean Steel
2 SeAH Steel Corp $227.3 M South Korea South Korean Basic Materials South Korean Steel
3 KISCO Corp $223.0 M South Korea South Korean Basic Materials South Korean Steel

Top Steel Companies from South Korea as of Jan. 01, 2026

1. POSCO

Company Profile: POSCO
Market Cap (USD): $15.60 B
Country: South Korea
Sector: South Korean Basic Materials
Industry: South Korean Steel

2. SeAH Steel Corp

Company Profile: SeAH Steel Corp
Market Cap (USD): $227.3 M
Country: South Korea
Sector: South Korean Basic Materials
Industry: South Korean Steel

3. KISCO Corp

Company Profile: KISCO Corp
Market Cap (USD): $223.0 M
Country: South Korea
Sector: South Korean Basic Materials
Industry: South Korean Steel

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