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Dec 31
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Alpayana Commencing All-Cash Offer to Acquire Sierra Metals
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Dec 30
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Alpayana Commences All-Cash Offer to Acquire Sierra Metals Inc.
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Dec 30
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Sierra Metals Adopts Shareholder Rights Plan; Comes After Shareholders Rejected Proposed Takeover Bid by Alpayana
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Dec 30
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Sierra Metals Adopts Shareholder Rights Plan
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