Cash copper rose 1.4% on the London Metal Exchange to US$6,668 per tonne, while on Comex, copper futures for December delivery are above $3 per pound.
Iron ore has also strengthened, with MySteel 62% fines up 3.8% to $123.45/t, after Vale announced another production setback this week of about 11,000t per day.
The Brazil-based miner said it was suspending concentrate production at its Viga mine in line with a court ruling, which it would challenge, that prevented tailings disposal at Viga's B7 dam.
It closed up 1.3% in Brazil.
In Toronto, Lundin Mining (TSX: LUN) closed up 5.2%, having said it expected to return to "full processing capacity" within 60 days at its Chapada copper-gold mine in Brazil, where all four mill motors had suffered electrical damage.
The gold price rose above $1,900 an ounce in the past 24 hours but was down around $1,887/oz at the time of writing.
Finally, AngloGold Ashanti (JSE: ANG) closed down 2.7% as it confirmed the sale of its South Africa assets to Harmony Gold Mining had concluded and it had received the initial $200 million cash payment.
