TSXV: MTA OTCQX: MTAFF Frankfurt: X9CP VANCOUVER, June 27, 2018 /CNW/ - Metalla Royalty & Streaming Ltd. announces preliminary production results for the twelve months ended May 31, 2018 of 519,791 ounces of attributable silver , where 429,315 oz. were sold and provisionally invoiced and 90,476 oz. remained as inventory to be realized in the
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