Cyprium Mining Corporation announced additional results from its initial phase of exploration at the Potosi silver mine located in Santa Eulalia, Mexico. On July 28, 2015, the company announced the signing of letter of intent to acquire a 53% controlling interest in a joint venture to be formed which will have the rights to explore and exploit the historic Potosi silver mine. The underground exploration program consisted of thirteen channel samples taken on level 6 and 11 of the mine.

Three samples from level 6 gave a weighted average of 733 g/t Ag, 1.12% Pb and 0.53% Zn over an average sample width of 1.53 meters, while a sample taken from a stockpile located on level 6 yielded 376 g/t Ag, 0.75% Pb and 1.66% Zn. The nine samples from level 11 yielded 45.5 g/t Ag, 2.02% Pb and 4.10% Zn over an average sample width of 1.84 meters.