Toronto, Ontario--(Newsfile Corp. - August 6, 2026) - Thistle Resources Inc. (TSXV: TRCG) (OTCQB: TRCGF) (FSE: BU9) (the "Company" or "Thistle") is pleased to announce certified assay results of up to 14.40% Antimony (Sb) and 7.59 oz Silver (Ag) from trench sampling at its flagship Brunswick Antimony Project in the world-famous Bathurst Mining Camp, New Brunswick, Canada. Results were received from ALS Global (Certificates MN26255585 and MN26272904) for eleven samples collected during the Company's 2026 trenching program.

Highlights

• 14.40% Sb in sample TRG-SB-001 — accompanied by 1.99 oz Ag
• 7.59 oz (236 g/t) Ag in sample TRG-SB-002 — accompanied by 4.24% Sb
• Results confirm a high-grade antimony-silver association, distinguishing Thistle's Brunswick Antimony Project from other North American antimony systems
• This never-drilled project lies adjacent to the World Famous the Brunswick No. 12 on its eastern claim boundary.
• Bedrock trench mapping and channel sampling are underway to define the strike of the mineralized granite-sediment contact and guide drill targeting

Eleven trench samples of freshly exposed material were collected along the edge of Trench Area #1 at approximately UTM coordinates 288890E / 5259810N (Zone 20). The samples represent various styles of antimony mineralization, including disseminations, massive blebs, and quartz-vein-associated masses.

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Table 1: Certified Assay Results — Brunswick Antimony Project

Silver reported as troy ounces per metric tonne, calculated from Ag ppm using a conversion factor of 31.1035. Antimony reported as weight percent. ALS Global Certificates MN26255585 and MN26272904. Antimony in TRG-SB-001 and TRG-SB-005 exceeded the upper detection limit of ME-ICP61a and was determined by ore-grade method ME-OG62 under Certificate MN26272904. Samples are selective by nature and grades reported may not be representative of mineralization across the property.

Gary Lohman, P.Geo., VP Exploration & Director, stated: "We are very pleased to have the program underway. This trenching campaign is designed to uncover the granite-sediment contact — the boundary that hosts the antimony - silver mineralization. Previous sampling identified various styles of mineralization, mostly associated with extensive silicification and quartz veining, typical of a hydrothermal system."

While the project shares some similarities with Lake George, the Brunswick Antimony Project stands out for the presence of high-grade silver in the system, accompanied by lesser gold, lead, and zinc, with previous silver assays returning up to 1,300 g/t Ag. Being mineralogically complex, and having already demonstrated exceptional assays for antimony, silver, and local gold, we very much look forward to advancing the 2026 program and defining this unique occurrence. Once the trenches are mapped and channel sampled, the structural data will help define the strike of the contact, enabling us to best target our drilling. In mid-June, Jim Walker, P.Geo., Ph.D., visited the site to assist in designing our program and to provide insight into the local geology, particularly the known antimony deposits of New Brunswick.

Photo 1: Antimony-silver mineralization in trench sample TRG-SB-003, Trench Area #1

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Photos 2-3: Trench samples TRG-SB-001 (left) and TRG-SB-002 (right), Trench Area #1

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Photos 4-5: Trench samples TRG-SB-004 (left) and TRG-SB-005 (right), Trench Area #1

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Patrick J. Cruickshank, MBA, President, CEO & Director, stated: "We are excited to deliver these high-grade certified results from our Brunswick Antimony Project trench program. Once again, the results confirm a dynamic system — and a confirmed relationship between high-grade antimony and high-grade silver, distinguishing us from other antimony systems in North America. Antimony is a designated critical mineral in both Canada and the United States, and North American supply is scarce. This is an exciting result for our shareholders and for the Bathurst Mining Camp."

Figure 1: Brunswick Antimony Project Trench Locations (July 2026)

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Analysis and QAQC

All samples were submitted to ALS Global in Moncton, an independent commercial laboratory, for both sample preparation and assaying. Samples submitted through ALS are run through standard preparation methods and analyzed using Code ME-ICP61a, a four-acid digestion followed by ICP-AES analysis. Gold analysis is performed by standard fire assay (Au-AA23) using a 30-gram sample with an AA finish. Overlimit assays for Ag and Sb are performed using code OG62, a four-acid leach with an ICP-AES or AA finish. Antimony in samples TRG-SB-001 and TRG-SB-005 exceeded the upper reporting limit of ME-ICP61a and was re-determined by ore-grade method ME-OG62, reported under Certificate MN26272904. ALS undertakes its own QA/QC protocols, including coarse and pulp duplicate analysis, to ensure proper sample preparation and equipment calibration.

Thistle's QAQC program includes regular insertion of CRM standards, duplicates, and blanks into the sample stream with a stringent review of all results. QAQC and data validation were performed, and no material errors were observed.

Qualified Person

The technical and scientific information in this news release has been reviewed and approved by Gary Lohman, P.Geo., COO & VP Exploration of Thistle Resources Inc. and a Qualified Person as defined by National Instrument 43-101. Mr. Lohman is not independent of the Company.

About Thistle Resources Inc.

Thistle Resources Inc. is a Canadian precious metals and critical minerals exploration company operating in the world-famous Bathurst Mining Camp of New Brunswick, one of Canada's most prolific mining districts. The never-drilled Brunswick Antimony Project offers blue-sky potential — a high-grade antimony-silver-gold discovery on the eastern flack adjacent to the world-famous past-producing Brunswick No. 12 mine property. At the flagship Middle River Gold Project, Phase 1 and 2 drilling have confirmed gold mineralization from surface to 130 metres along a 7-kilometre trend of mineralized folds, with an untested deeper zone from 400 metres and Phase 3 ahead. The portfolio also includes the Middle River VMS, Alba Forks Gold, and Celtic Highland Gold projects. With exploration planned across both flagships in 2026, Thistle is advancing two discovery stories in a single district.

ON BEHALF OF THISTLE RESOURCES INC.

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This press release may include forward-looking information concerning the business of Thistle. Forward-looking information is based on certain key expectations and assumptions made by the management of Thistle. In some cases, you can identify forward-looking statements by the use of words such as "will," "may," "would," "expect," "intend," "plan," "seek," "anticipate," "believe," "estimate," "predict," "potential," "continue," "likely," "could" and variations of these terms and similar expressions, or the negative of these terms or similar expressions. Forward-looking information involves significant risks and uncertainties that could cause actual results to differ materially from those anticipated. These risks include, but are not limited to, the uncertainties involved in interpreting geological data, risks associated with exploration and mining operations, commodity price fluctuations, the ability to obtain financing and required permits, and regulatory restrictions. The Company's objective to define more than 2,000,000 ounces of gold at the Middle River Gold Project is a target only and is not a current mineral resource or mineral reserve estimate as defined under National Instrument 43-101; there is no guarantee it will be achieved. Readers are cautioned that the assumptions used in the preparation of forward-looking information, although considered reasonable at the time of preparation, may prove to be imprecise. Thistle undertakes no obligation to update or revise any forward-looking information except as required by law.

Neither the TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.

Thistle Resources Inc., 40 King Street West #2400, Toronto, ON M5H 3S1 | www.thistleresources.com | (506) 800-0581

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