New Positive Drill Results at TriStar's Castelo de Sonhos Project

TriStar Gold, Inc.

SCOTTSDALE, AZ--(Marketwired - July 12, 2017) - The first assay results are now available from the reverse circulation (RC) drilling program at the Castelo de Sonhos (CDS) gold project of TriStar Gold Inc. (TSX VENTURE: TSG) (the "Company" or "TriStar"). This RC drilling program began in May when the first RC rig arrived at site and is now being handled by three rigs, the last of which arrived at site in June. To date a total of 60 holes have been completed for 7,013 m; assay results are now available from 24 holes for 2,747 m. Drilling is expected to continue until we have approximately 15,000 m complete, at which point an updated resource estimate will be calculated and used as the basis for the project's first preliminary economic assessment (PEA).