BRIEF-Guyana Goldfields Inc. Achieves Strong Production Of 38,500 Ounces Of Gold And Generates $50 Mln Revenue in Q1 2018

* ACHIEVES STRONG PRODUCTION OF 38,500 OUNCES OF GOLD AND GENERATES US$50M OF REVENUE IN THE FIRST QUARTER OF 2018; FULL FIRST QUARTER RESULTS RELEASED ON APRIL 30, 2018