Reunion Gold Corporation announced the preliminary metallurgical test work results for its Oko West Project in Guyana. The results were produced from recent metallurgical testing programs completed by Base Metallurgical Laboratories in Kamloops, British Columbia. Gold Recovery Test Work Results Summary: The metallurgical test work program was conducted under the overall supervision of G Mining Services Inc. (GMS).

Eighteen composite samples totaling 1,200 kilograms were evaluated using core material from across the deposit representing two gold grades (1 g/t Au and 2 g/t Au), three weathering profiles (saprolite, transitional material and fresh rock) and three geological units (volcanics, metasediments and carbonaceous sediments). Comminution Test Results: Comminution testing was completed on all composites except for the carbonaceous sediments to characterize sample hardness. Steve Morell Comminution (SMC), Bond Rod Mill Work Index (RWI), Ball Mill Work Index (BWI) and Bond Abrasion Index (Ai) tests were completed and summarized as follows: SMC Axb average value of 33.8 for fresh rock indicates samples are competent.

Average RWI values of 16.7 kWh/tonne (fresh rock) and 6.5 kWh/tonne (transitional material). Average BWI values of 14.1 kWh/tonne (fresh rock) and 6.9 kWh/tonne (transitional material). Average Ai value of 0.132 (fresh rock) and 0.026 (transitional material).

These results indicate a deposit with a medium level of hardness, which is typical of other deposits in the Guiana Shield region. Gravity Gold Recovery Test Results: Saprolite and fresh rock composite samples were tested using the Extended Gravity Recoverable Gold (EGRG) protocols to determine their amenability to gravity concentration. The results showed: Moderate to high gravity recoverable gold content ranging 30-63% gold.

At full scale, gravity circuit recoveries would be expected to be in the 10% to 40% gold recovery range. Grind-Recovery Leach Tests: Grind series leach tests were completed on both whole of ore and gravity tails composite samples to evaluate the effect of primary grind size on gold extraction. Samples with a primary size of P80 at 75µm resulted in the best gold extractions on average when compared against P80 of 105µm and 88µm with results described below.

Standard Bottle Rolls Leach Tests: Standard bottle roll leach and carbon-in-leach (CIL) tests were completed on both whole of ore and gravity tails composite samples over 48 hours. In general, P80 of 75µm, gravity-leach, oxygen sparging tests produced the best gold extraction results with key observations noted below: Gold extraction for gravity-leach averaged 94.4% (fresh rock), 96.5% (transitional material) and 97.5% (saprolite). Gold extraction was similar for the 1 g/t and 2 g/t material.

Preg-robbing tests were completed on carbonaceous sediment samples and the results showed little to no preg-robbing. Based on these results, the recoveries assumed for the PEA will be 92.5% (fresh rock), 95% (transitional material) and 96% (saprolite) since some gold loss is expected from the laboratory tests to the process plant. The recently released MRE was based on recoveries of 90% (fresh rock), 90% (transition material) and 95% (saprolite) determined from preliminary leach tests prior to the full metallurgical test work program.

Further PEA Test Work: To further support the PEA, the Company intends to complete the following additional test work: Mineralogy assessment of core and leach tailings samples. Cyanide destruction tests on leach tailings from the bottle roll tests. Acid-base-accounting tests on core samples, leach tailings and waste rock samples.

Aggregate testing of waste rock samples.