Mr. Rick Howes reports

REUNION GOLD ANNOUNCES ADDITIONAL DRILL RESULTS FROM ITS OKO WEST PROJECT, GUYANA, HIGHLIGHTED BY HOLE D-254 WHICH INTERSECTED 120.7 M @ 3.13 G/T AU INCLUDING HIGH GRADE INTERCEPTS OF 35.2 M @ 7.42 G/T AU AND 8.4 M @ 9.65 G/T AU

Reunion Gold Corp. has released additional results from its resource definition drill program at the Oko West project. This release reports significant intervals from 34 new diamond drill holes (15,518 metres) completed in blocks 1, 4, 5 and 6 that will form part of the upcoming mineral resource estimation (MRE). Results continue to confirm broad intercepts of gold mineralization while also intersecting high-grade intervals at depth and within Block 4. These broad intercepts are highlighted by hole D-254 intercepting 120.7 m at 3.13 grams per tonne (g/t) of gold (Au), hole D-259 intersecting 52.7 m at 4.55 g/t Au and hole D-271 intersecting 114.5 m at 2.02 g/t Au.

In addition to ensuring sufficient drill density for the upcoming MRE, the drill program has also targeted high-grade zones within the overall and wider mineralized envelope, as demonstrated by the higher-grade included intervals reported in the table entitled "Significant intervals," using a 1.5 g/t Au cut-off. Such higher-grade intervals and zones continue to be targeted by the company in view of a possible underground mining scenario. Note that holes D-200 and D-203 (previously reported) intercepted gold mineralization to a depth of approximately 1,000 m below surface.

Phase 1 of the Scout Geochem drill program at the Bryan zone to the west of the project area is largely complete and has been successful in outlining three main areas of anomalous gold identified through saprolite sampling, which will require further follow-up. This follow-up program will initially include infill scout drilling and ground geophysics, followed by conventional RC (reverse circulation) drill testing at both the High Road and North Drive targets.

Alongside the shallow Scout RC drilling program previously announced, the company has also commenced wider-spaced conventional RC drilling in selected areas within the Bryan zone. Of the initial five holes completed, R-1006 was drilled to a depth of 100 m (beneath a Scout RC saprolite sample of 66 parts per billion (ppb) Au) and intersected 17 m at 1.71 g/t Au from 14 m depth, including five m at 4.08 g/t Au. Further work in this area is also being planned.

Rick Howes, president, chief executive officer and director of Reunion Gold, commented: "Activities at Oko West continue in full swing, with a combined focus on delivering a maiden resource estimate on the Kairuni zone, while simultaneously delivering promising new exploration results from other areas within the project. The results from recent diamond drilling are especially important to highlight and continue to show continuity of high-grade mineralized zones at depth. For example, the 47 high-grade intersects from blocks 1 and 4 (from 20 holes) reported a weighted average grade of 5.05 g/t Au, with an estimated average true thickness of 6.7 m.

"We are also very excited to report that after just 22 months of drilling at Oko West, we intend to announce our maiden mineral resource estimate (MRE) on June 13 after the close of markets, and will be hosting a conference call on June 14 to provide additional information on this MRE announcement."

The company is also continuing with additional study activities required to deliver a preliminary economic study (PEA) by year-end, which will be based on the MRE. Continuing studies include the second phase of an environmental baseline study, as well as metallurgical testing program designed to support the PEA. The main aim of the program is to evaluate the metallurgical response of the main ore types in the deposit and develop a preliminary flowsheet design that optimizes gold recovery.

Live event on June 14, 2023, at 10 a.m. (ET)

Please join the company for a live event on June 14 at 10 a.m. (ET). Mr. Howes, CEO of the company and Justin van der Toorn, vice-president of exploration, will discuss and answer questions on the MRE.

Register for the company's live event on-line.

Sample collection, assaying and data management

Significant intervals in this press release have been calculated using a grade cut-off of 0.3 g/t Au, a minimum length of 10 metres and up to 10 metres maximum length of consecutive internal waste. Included significant intervals have been calculated using a grade cut-off of 1.5 g/t Au, a minimum length of three metres and up to two metres maximum length of consecutive internal waste. Gold grades are uncapped. Mineralized intersection lengths are not necessarily true widths and estimated true thickness (ETT) has been calculated using an assumed plane of mineralization dipping 65 degrees toward 95 degrees, representative of the mineralization identified in Block 4. Complete drilling results and drill hole data are posted on the company's website. Diamond drill (DD) samples consist of half of either HQ or NQ core taken continuously at regular intervals, averaging 1.4 m, bagged and labelled at the site core shed. Reverse circulation (RC) drill samples are obtained from a rotary splitter attached to a Metzke cyclone, weighed, bagged and tagged at the drill site. All resource drilling samples are shipped to the Actlabs certified laboratory in Georgetown, Guyana, respecting best-practice chain-of-custody procedures. Samples from the Scout RC program and recent conventional RC samples are shipped to MS Analytical in Georgetown using the same chain-of-custody procedures. At each laboratory, samples are dried, crushed to 80 per cent passing two millimetres (mm), riffle split (250 grams) and pulverized to 95 per cent passing 105 microns. Coarse blanks are inserted by the company, and are used between and following suspected high-grade intervals. Barren sand flushes are inserted by the analytical laboratory after each sample is pulverized to clean the bowl. Gold analysis is carried out through a 50 g fire assay with an atomic absorption finish. Initial assays with results above three g/t Au are reassayed with a gravimetric finish. Samples with visible gold are additionally assayed with a metallic screen method using one kilogram of pulp. Certified reference materials and blanks are inserted at a rate of 5 per cent of samples shipped to the laboratories. RC field duplicates and DD umpire pulp duplicates are also generated at a rate of 5 per cent of samples. Pulp umpire duplicates are analyzed at the MSALabs certified laboratory in Georgetown. Assay data are subject to quality assurance/quality control (QA/QC) prior to acceptance into the company database, managed by an independent consultant.

Qualified person

The technical information in this press release has been reviewed and approved by Mr. van der Toorn, the company's vice-president of exploration. Mr. van der Toorn (CGeol FGS, EurGeol) is a qualified person under Canadian National Instrument 43-101.

About Reunion Gold Corp.

Reunion Gold is a leading gold explorer in the Guiana Shield, South America. In 2021, the company made an exciting new gold discovery at its Oko West project in Guyana, where, to date, it has outlined continuous gold mineralization at the Kairuni zone over 2,000 metres of strike and to a depth of 600 metres. The mineralization appears to be open-pit amenable with a strong grade profile. In addition to Kairuni, there are several additional priority exploration targets on the Oko West project area that the company is exploring.

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