LONDON, UNITED KINGDOM and TORONTO, ONTARIO — (Marketwire) — 11/21/12 — Hochschild Mining plc (LSE: HOC) ("Hochschild") and Andina Minerals Inc. (TSX VENTURE: ADM) ("Andina") today announced the mailing to Andina shareholders of Hochschild-s offer and take-over bid circular and Andina-s directors- circular, in connection with the previously announced recommended all-cash offer to be made by Hochschild (the "Offer") for all of the issued and outstanding common s
