Cerro Grande Mining Corporation Announces Retirement of David Thomson as Director, Effective April 1, 2021

Cerro Grande Mining Corporation is a Chile-based junior mining, exploration and development company. The Company produces gold, silver and copper, with operations mainly in Chile. The Company is also engaged in the exploration of other mineral properties and in the development of its limestone deposits. Its projects include the Pimenton Porphyry Project and the Tordillo property. The Pimenton Properties in Central Chile for South American Gold and Copper Company Limited. Santa Cecilia is an exploration project for hydrothermal gold, silver and copper in the high western Cordillera of Chile’s Third Region. The Catedral/Rino project covers an area of 5,025 hectares reduced from 19,895 hectares held in 2008 and consists of 25 concessions. Its interest in this project is held through 50.1% interest in Compania Minera Catedral, which is the holder of the Catedral concession. Catedral/Rino consists of two separate but adjacent limestone deposits, the Catedral deposit and the Rino deposit.