BRIEF-Chile's Codelco produces 843,000 tonnes of copper in H1
Aug 26 (Reuters) -
* Chile's codelco says produced 843,000 tonnes of copper in first half, up 1.4 percent
* Chile's codelco says direct cash costs $1.275/lb of copper in first half
* Chile codelco h1 pretax loss $97 million (Reporting By Santiago bureau)
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