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Most North American and European market indices were set for upbeat starts today and Australia's S&P/ASX200 was up at the time of writing.
Copper miners gained yesterday, with Freeport-McMoRan (NYSE: FCX) up about 1.5% in New York and Antofagasta (LSE: ANTO) rising more than 2% in London.
Base metal futures were mixed in Asian trade and the gold price remains about US$1,274 an ounce.
Alumunium producer Norsk Hydro (OS: NHY) jumped 5.6% after announcing Brazil's federal court had lifted a production embargo, saying it would ramp up the Alunorte refinery "towards normal production after running at half capacity for more than a year".
The 50% production cut was imposed last year over concerns of a spill after heavy rains.
An embargo remains on using its new waste facility called DRS2 and Norsk said last week its DRS1 had an estimated remaining lifetime of 8-18 months.
Lynas Corp (ASX: LYC) was up 7.7% in afternoon Australian trade - a gain of more than 53% so far this year.
The integrated rare earths producer recently brushed off a takeover proposal from conglomerate Wesfarmers and this week outlined a A$500 million (US$344 million) plan to expand "to meet forecast demand growth".
Finally, Hudbay Minerals (TSX: HBM) continued its recent slide, down 2.5%, following a Bloomberg report it was planning to sell a 30% stake in its Rosemont copper development project in Arizona.