April 15 (Reuters) - Guyana Goldfields Inc GUY.TO :
* GUYANA GOLDFIELDS INC. ANNOUNCES FIRST QUARTER 2019 OPERATING RESULTS AND COMMENTS ON POTENTIAL MINE PLAN OPTIMIZATION
* GUYANA GOLDFIELDS INC - Q1 MINING RATE AVERAGED 61,542 TONNES PER DAY
* GUYANA GOLDFIELDS INC QTRLY GOLD PRODUCTION OF 36,600 OUNCES, ON TRACK TO ACHIEVE PREVIOUSLY STATED 2019 GUIDANCE RANGE OF 145,000 TO 160,000 OUNCES
* GUYANA GOLDFIELDS INC - QUARTERLY MILL PERFORMANCE OF 7,213 TONNES PER DAY