JOHANNESBURG (miningweekly.com) – Despite London-listed Acacia Mining reporting a strong operational performance for the three months ended March 31, which includes the company’s best cost performance since 2010, the Tanzania-focused gold miner’s first-quarter results were undercut by a tax provision taken following an adverse court ruling. The company saw a net loss of $52-million – from a profit of $9.2-million in Q1 2015 – as a result of additional tax provisions of $70-million.