South Korea: POSCO raises stainless steel prices for Sep’25

• High input costs, currency depreciation prompt hike
• Other leading producers also raise prices for Sep’25

POSCO, South Korea’s leading stainless steel producer, has increased prices of its 300 series stainless steel and 316L extra by KRW 100,000/t ($71/t) in September 2025. The decision aims to offset high raw material costs, such as from robust molybdenum prices, and the currency depreciation of the Korean won against the US dollar. Despite previously freezing price increases to support the sluggish domestic market, POSCO has now aligned its pricing with global sentiments.

POSCO’s decision has been influenced by recent moves by major global producers such as Taiwan’s Yusco and several leading European and Japanese steelmakers, who have announced alloy surcharge hikes or shipment price increases for September. Rising bids for Chinese nickel pig iron and ferro chrome have further impact regional stainless steel costs, supporting a broader price uptrend in major markets.

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