Renewed supply concerns push copper higher
IN BRIEF: Brazil pig iron output up in January
TREND: Iron ore's 'fast and furious' price rally
Usiminas CEO 'confident' company will gain access to mining arm's funds

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Cobre Panamá seen benefiting from strong copper fundamentals
Usiminas narrows losses in 2016
Copper slips on investor profit-taking
Vale reports record blended iron ore volumes in Asia
Gold, silver surge as stocks slip
Brazil aluminum firms ink technical cooperation deal with development ministry