Trillium Gold Intersects New East-West Structures at Newman Todd

• 4 metres @ 24.2 g/t gold including 1.15 metres @ 73.67 g/t gold from NT21-202 in a new east-west fault corridor more than 400 metres southwest along the NT Zone from the Main Zone Fault
• Wide zone of 15.5 metres @ 4.6 g/t gold containing 1.45 metres @ 35.86 g/t Au from 247 metres downhole in NT21-196
• Testing and confirming gold mineralization on multiple east-west structures cutting through the NT Zone

VANCOUVER, British Columbia, April 20, 2022 -- Trillium Gold Mines Inc. (TSXV:TGM, OTCQX:TGLDF, FRA:0702) ("Trillium Gold" or the "Company") is pleased to report results from drill holes NT21-195 to -203 and RV21-36A at the Company's 100% owned Newman Todd (NT) Complex. Despite having been drilled in the last quarter of 2021, final results from these holes have only been received in late March 2022 due to the general backlog in assay laboratory turnaround.

The group of drillholes was designed to follow up on previous results and to initiate testing of newly interpreted east-west (E-W) structural corridors cutting through the NT Zone. Significant intersection highlights from these holes are listed in Table 1 below and can be viewed on sections located on Trillium Gold's website at www.trilliumgold.com.

William Paterson, Trillium Gold's Vice President of Exploration added, "We continue to intersect significant mineralization as we follow up on the known east-west structures within the NT Zone and have received additional significant results as we begin to test new interpreted structures further southeast along the NT Zone. Our structural model and interpreted controls on the gold mineralization seem to be holding up well. Further work is necessary, but we are confident that subsequent drilling will yield similar results as we continue our work. We also feel it is time to commence testing high-priority structural targets both east and west of the NT Zone in order to begin expanding the resource footprint in the greater project area."

Russell Starr, Interim Chairman, President and CEO of Trillium Gold commented, "This program is the culmination of months of piecing together a complex network of historic data that encountered high grade intercepts lacking explanation and focused almost entirely inside the NT Zone. These results have validated our interpretation that several other structures displaying significant widths of mineralization can be found by stepping out of the Main Zone to enhance the value of the overall project. The Newman Todd-Rivard project has yet to be meaningfully drilled beyond 400 metres at depth and continues to evolve as a more viable open-pit scenario with further informed drilling."

Hole NT21-195 targeted high-grade Rivard-style quartz vein mineralization along the footwall contact of the NT Zone where two of the more significant results were found in siliceous NT Zone breccia segments offset into the footwall along E-W faults.

Holes NT21-196 and -197 followed up on previous significant intersections associated with hole NT21-194 (9m @ 19.73 g/t Au) and the Camp Zone Fault (see NR dated September 23, 2021). Hole NT21-196 was drilled above hole NT21-194 and intersected mineralized portions of the NT Zone with veining containing visible gold (VG) associated with galena and sphalerite, located in the footwall contact area. Hole NT21-197 stepped back to collar in the Camp Fault area testing the down-dip continuity of mineralization and the E-W Main Zone Fault structure. Both holes returned numerous significant assay results; NT21-196 throughout the hole, with VG seen in quartz veins between 257.8m and 259.4m, and in the lower portion of NT21-197, in the Main Zone Fault area. See Figures 1 and 2.

In the south region of the Main Zone portion of the NT Zone, a series of holes (NT21-198 to -203) were drilled to the north and south across known and newly interpreted E-W breccia fault corridors crossing the NT Zone, often seen associated with better grade mineralization and Rivard-style quartz vein clusters along the fault trends. The Rivard-style vein intersected in NT21-202 at 262.25 - 264.2m contained multiple specks of VG and assayed 4m @ 24.2 g/t Au. All the holes returned grades and widths as expected, supporting the interpretation that these E-W structural corridors are influencing and focusing gold in the NT Zone.

In the southwest portion of the NT Zone, hole RV21-36A was drilled to assist in refining the model for the south portion of the NT Zone, as well as the SW Zone, and greatly extends the depth and extents of known mineralization. The hole first intersected the SW Zone showing patchy mineralization followed by a second breccia zone, towards the southeast, correlating to the NT Zone proper. In addition, the VG located in a sheared felsic volcanic section (at 695.5m) and in a quartz lens (at 705.5m), in the lower portion of the hole, expands the limits of VG occurrences cored in the project area. The E-W fault corridor associated with this gold mineralized zone is a new addition into our model for future targeting. Two very significant intercepts were received from this hole of 0.45m @ 17.5 g/t Au from 695.35m and 12m @ 3.08 g/t Au from 704m (including 1m @ 22.6 g/t Au). This hole was only stopped due to diminishing drill productivity.

Figure 1: Geology plan showing the location of drillholes NT21-195 to NT21-203 and RV21-36A.
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Figure 2: Long Section view (looking northwest) showing NT Zone model, exploration block model, historical results and significant intersections from NT21-195 to NT21-203 and RV21-36A.
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Table 1: Highlights of significant intercepts from holes NT21-195 to -203 & RV21-36A. A full listing of Significant Intercepts can be found on Trillium Gold's website (www.trilliumgold.com).

Table 2: Drill collar details for drill holes NT21-195 to -203 and RV21-36A - UTM zone 15, NAD 83.

* Note: Drillhole RV21-36 was abandoned at 21m.

All drilling was supervised by Paul Barc, PGeo. The drilling was conducted by Rodren Drilling Ltd., of West St. Paul, Manitoba. Drill core was logged and sampled in a secure core facility on site. Core samples from the program were cut in half, using a diamond cutting saw, and half cores were sent for analysis to Activation Laboratories Ltd. in Dryden and Thunder Bay, ON, both accredited mineral analysis laboratories. All samples were analysed for gold using standard Fire Assay-AA techniques. Samples returning over 10.0 g/t gold were analyzed utilizing standard Fire Assay-Gravimetric methods. Any samples with results greater than one ounce per ton gold were also analyzed with a standard 1 kg metallic screen fire assay. Certified gold reference standards, blanks and duplicates are routinely inserted into the sample stream, as part of Trillium Gold's quality control/quality assurance program (QAQC) to monitor accuracy and precision. No QAQC issues were noted with the results reported herein. All drill intercepts reported are down-hole core lengths, which do not necessarily represent true widths. References to visible gold (VG) are factual observations and should not be construed as quantifiable grade.

The technical information presented in this news release has been reviewed and approved by William Paterson QP, PGeo, VP of Exploration of Trillium Gold Mines, as defined by NI 43-101.

For further information, please contact Donna Yoshimatsu, VP Corporate Development and Investor Relations at dyoshimatsu@trilliumgold.com, (416) 722-2456, or info@trilliumgold.com, 604-688-9588.

Visit our website at www.trilliumgold.com.

On behalf of the Board of Directors,
Trillium Gold Mines Inc.

Russell Starr
Interim Chairman, President, CEO

About Trillium Gold Mines Inc.

Trillium Gold Mines Inc. is a growth focused company engaged in the business of acquisition, exploration and development of mineral properties located in the Red Lake Mining District of Northern Ontario. As part of its regional-scale consolidation strategy, the Company has assembled the largest prospective land package in and around the Red Lake mining district in proximity to major mines and deposits, as well as the Confederation Lake and Birch-Uchi greenstone belts. Recent examples are the acquisition of the Willis property southwest of and contiguous to the Newman Todd complex, and a non-binding LOI giving the Company control over a significant portion of the Confederation Lake Greenstone Belt to more than 100 km in length. In addition, the Company has interests in highly prospective properties in Larder Lake, Ontario.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cautionary note regarding forward-looking statements

This news release contains forward-looking information, which involves known and unknown risks, uncertainties and other factors that may cause actual events to differ materially from current expectations.

Forward-looking information is based on management's reasonable assumptions, estimates, expectations, analyses and opinions, which are based on management's experience and perception of trends, current conditions and expected developments, and other factors that management believes are relevant and reasonable in the circumstances, but which may prove to be incorrect. Such factors, among others, include: impacts arising from the global disruption caused by the Covid-19 coronavirus outbreak, business integration risks; fluctuations in general macroeconomic conditions; fluctuations in securities markets; fluctuations in spot and forward prices of gold or certain other commodities; change in national and local government, legislation, taxation, controls, regulations and political or economic developments; risks and hazards associated with the business of mineral exploration, development and mining (including environmental hazards, industrial accidents); inability to obtain adequate insurance to cover risks and hazards; the presence of laws and regulations that may impose restrictions on mining; employee relations; relationships with and claims by local communities and indigenous populations; availability of increasing costs associated with mining inputs and labour; the speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from government authorities); and title to properties.

Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. The Company disclaims any intention or obligation, except to the extent required by law, to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.