Moscow has been keeping a close eye on rising raw materials costs in the construction sector as part of efforts to keep domestic commodity prices stable.
The Tangshan government held a symposium on Monday, considering lowering the output curtailment ratio for some mills that had finished ultra-low emission upgrades.
Sibanye reported a 78% increase in first-quarter core profit last month, on the back of higher prices for metals, including gold, platinum, palladium and rhodium.