BUZZ-Eldorado Gold Corp: Greece revokes processing plant approval
** Canadian gold miner's Toronto-listed shares down 7.8 pct at C$6.65; U.S.-listed stock down 8.3 pct at $5.32
** Says its Greek unit received notice from Greece's energy ministry revoking approval to complete construction of processing plant at its Skouries project
** Says energy ministry may reinstate approval once it completes an internal review
** Up to Friday's close, company's Toronto-listed shares had fallen more than 16 pct in six months
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