Brazil watchdog rejects CSN appeal over Usiminas tender
Fitch maintains 'negative watch' outlook on Brazil's CSN
Brazil exempts some capital goods from import duty
Junior exploration roundup: Ero Copper, Sierra Metals, SolGold, Azure, American Silver

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Jamaica seeks US sanctions waiver for bauxite ops
Brief: Body recovered following Mexico mine dam burst
Southern Copper advancing studies for Ilo smelter expansion
LatAm not a priority for mining investors, says PwC
Junior exploration roundup: Sierra Metals, Auxico, Dynacor
Peru seeing 'growing confidence' among miners - president