TDG Extends Aurora Mineralization 150 metres West of Property Boundary Intersecting 1.26 g/t Au, 0.29% Cu over 82.3 metres

TDG Gold Corp. (TSXV: TDG,OTC:TDGGF | OTCQX: TDGGF) (the "Company" or "TDG") is pleased to report additional Phase I drilling results from the Aurora West Zone within TDG's Greater Shasta-Newberry ("GSN") project located in the Toodoggone District of British Columbia. To date, the fully funded, ongoing Phase I Aurora West Zone exploratory drilling program has now completed ~12,000 metres ("m") in 19 drill holes. Drilling continues on schedule with three drill rigs slated to complete ~15,000 m prior to year end. Delivery times for finalized analytical results are impacted by the high volume of samples at the laboratory. As such, additional drilling results will be disclosed in batches of successive drill holes as finalized analyses become available.

Phase I Additional Drilling Highlights:

• TDG25-009: 1.26 grams per tonne ("g/t") gold ("Au"), 2.6 g/t silver ("Ag"), 0.29% copper ("Cu") over 82.3 m
• TDG25-010: 0.94 g/t Au, 1.7 g/t Ag, 0.24% Cu over 142.2 m
  including 1.54 g/t Au, 2.6 g/t Ag, 0.36% Cu over 56.0 m

Ongoing Step Out Drilling Demonstrates Both Scale and Tenor Continuity

Phase I drill hole TDG25-009 has expanded the Aurora West Zone Au-Ag-Cu mineralization at depth having intersected 1.26 g/t Au, 2.6 g/t Ag, 0.29% Cu over 82.3 m.

This new interval has expanded the Aurora West Zone mineralization an additional 50 metres west, for a total of 150 metres west of the property boundary and ~50 metres down dip of previously reported Phase I drill hole TDG25-003 which intersected 1.13 g/t Au, 2.6 g/t Ag, 0.30% Cu over 60.1 m (news release dated Oct 15, 2025 ). This area remains untested by drilling both to the west as well as down dip. ( Figures 1 & 2 ).

Fletcher Morgan, CEO of TDG remarks, "The sizeable drilling patterns used by TDG that are in excess of 100 metres between drill holes have delivered accelerated returns and capital efficiency as the Company continues to make evident the scale of the still evolving Aurora West Zone. Having explored Aurora West Zone for only 5 months, TDG has established grade, continuity and rapidly delineated mineralization over a preliminary area measuring ~150 by ~600 metres with the zone still remaining untested in every direction."

Additional Near Surface Expansion Realized

Phase I drill hole TDG25-010 has demonstrated a southwesterly expansion 50 metres west of the Company's property boundary with a substantive interval grading 0.94 g/t Au, 1.7 g/t Ag, 0.24% Cu over 142.2 m . This drill extension hosts a higher-grade subinterval grading 1.54 g/t Au, 2.6 g/t Ag, 0.36% Cu over 56.0 m . Located 280 m below surface, the mineralization remains open for expansion to the south and up dip to surface.

Table 1: 2025 Phase I Aurora West Length Weighted Drill Hole Composites ²

* Intervals are core-length weighted. True width is unknown.
** Composite results were built using 0.30 g/t Au and/or 0.1% Cu cut-off, although there may be intervals within the composite below 0.30 g/t Au and/or 0.1% Cu.
*** Calculated composites are truncated to two decimal places for Au/Cu & to one decimal place for Ag.
**** Calculated composites may not sum due to rounding.

Table 2: 2025 Phase I Aurora West Drill Hole Location Information

Collar coordinates are provided in UTM Z9N NAD83. Elevations are reported as metres above sea level (mASL).

Quality Assurance and Quality Control Protocols

Samples for the GSN 2025 drill program followed chain of custody between collection, processing and delivery to a Bureau Veritas ("BV") laboratory in Vancouver, B.C. The drill cores were delivered to the core shack at TDG's Baker Mine site, and processed by geologists who inserted certified reference materials, blanks and duplicates (pulp and coarse) into the sampling sequence at regular intervals. The 2025 drill core was cut in half (1/2 HQ core or NQ core) and placed in zip-tied polyurethane bags, then in security-sealed rice bags before being delivered directly from the Baker Mine site, to Bandstra Transportation Systems in Prince George, B.C., and ultimately to the BV laboratory in Vancouver, B.C. Samples were prepared and analyzed following procedures summarized in Table 3 , where information about methodology can be found on the BV website, in the analytical guide ( here ).

Table 3: Au, Ag and Cu Analytical Methods.

Quality assurance and control (" QA/QC ") is maintained internally at the lab through rigorous use of internal certified reference materials, blanks, and duplicates. An additional QA/QC program is underway by TDG Gold through the use of certified reference materials (" CRMs "), duplicate samples and blank samples that were blindly inserted into the sample batch. If a QA/QC sample returns an unacceptable value an investigation into the results is triggered and when deemed necessary, the samples that were analyzed in the batch with the failed QA/QC sample are re-analyzed.

Qualified Person

Exploration activities at the GSN Project are administered by the Company's Vice President Exploration Steven Kramar, MSc., P.Geo. In accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects, Steven Kramar, MSc., P.Geo., is the Qualified Person for the Company and has validated and approved the technical and scientific content of this news release. The Company adheres to CIM Best Practices Guidelines in conducting, documenting, and reporting the exploration activities on its projects.

Notes

¹ Adjacent Properties: The Company has no interest in, or rights to, any of the adjacent properties mentioned, and exploration results on adjacent properties are not necessarily indicative of mineralization on the Company's properties. Any references to exploration results on adjacent properties are provided for information only and do not imply any certainty of achieving similar results on the Company's properties.

² Preliminary Assay Results: The data reported herein are considered preliminary, as the full set of assay results for the 2025 program has not yet been received. While the Company's QA/QC protocols (including the insertion of blanks, CRMs, and duplicates) have been applied, the current dataset is not sufficient to fully assess laboratory performance across the entire program. As additional assay results are returned and incorporated, the Company will provide an updated assessment of QA/QC performance to ensure data integrity and reliability.

³ Au rora/Aurora West Zone Mineralization Isoshell : The isoshell is calculated using data derived from length weighted composites from TDG (news releases Sept 02 , Oct 15 and this release) and Amarc Resources ^a,b,c utilizing a 0.3 g/t Au cut-off grade to generate an implicit model using radial basis function ("RBF") interpolation methodology. This creates a very smooth, highly localised 3D interpretive model that is controlled by nearby data and has limited influence at long distance. This model does not account for geological constraints.

^a Amarc Resources LTD, Amarc Announces Additional Drill Results from the AuRORA Copper-Gold-Silver Deposit Discovery in Collaboration with Freeport at the Joy District, British Columbia, Jan 20, 2025, Amarc Website ( here ).
^b Amarc Resources LTD, Amarc Announces New High Grade "AuRORA" Copper-Gold-Silver Deposit Discovery in Collaboration with Freeport at the Joy District, British Columbia, Jan 17, 2025, Amarc Website ( here ).
^c Amarc Resources LTD, Amarc Announces More Drill Results from Aurora and Three Emerging Copper-Gold Systems, in Collaboration with Freeport at the JOY district, Feb 28, 2025, Amarc Website ( here ).

About TDG Gold Corp.

TDG is a major mineral tenure holder in the Toodoggone District of north-central British Columbia, Canada, with 100% ownership of ~50,000 hectares of brownfield and greenfield exploration ground.

In 2023, TDG defined the 5.5 sq.km Greater Shasta-Newberry exploration target area (news release Jan 25, 2023 ) which is located directly adjacent to the recent gold-rich copper porphyry Aurora ¹ discovery announced by Freeport McMoran Inc. and Amarc Resources Ltd. (news release Jan 17, 2025 ).

In 2024, TDG also identified new copper-gold target areas over an expanded footprint covering ~53 sq.km known as the ‘Baker Complex' (news release Feb 28, 2024 ), including the North Quartz (news release Apr 02, 2024 ) and Trident (news release Mar 07, 2024 ) copper-gold porphyry targets.

TDG's other Toodoggone projects within the property package include the former producing, gold-silver Shasta and gold-silver-copper Baker mines, which produced intermittently between 1981-2012, and the historical high-grade gold Mets developed prospect, all of which are road accessible and, combined, have over 65,000 m of historical drilling. These projects have been advanced through compilation of historical data, new geological mapping, geochemical and geophysical surveys and, at Shasta, 13,250 m of modern HQ drill testing of the known mineralization occurrences and their potential extensions. In 2025, TDG published an updated Mineral Resource Estimate for Shasta (news release Jan 08, 2025 ), which remains open at depth and along strike.

In July 2025, TDG closed the acquisition of Anyox Copper Ltd. ("Anyox", news release July 14, 2025 ) which holds a combination of crown grants (100% owned and optioned) and mineral claims totaling over 10,000 hectares including the former producing Hidden Creek copper-gold mine – all located within the Anyox peninsula at the southern tip of B.C.'s Golden Triangle. Anyox gives TDG access to a volcanogenic massive sulphide horizon within a significant past-producing district with copper-gold-lead-zinc-silver potential.

TDG is well-funded with the priority exploration focus in 2025 to test for potential extensions of Aurora ¹ -style mineralization onto TDG's 100%-owned GSN project.

ON BEHALF OF THE BOARD

Fletcher Morgan
Chief Executive Officer

For further information contact:
TDG Gold Corp.
Telephone: +1.604.536.2711
Email: info@tdggold.com

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.

Forward Looking Statements

This news release contains forward-looking statements that are based on the Company's current expectations and estimates. Forward-looking statements are frequently characterized by words such as "extend", "appropriate", "deliver", "anticipate", "significant", "priority", "establish", "near", "major", "demonstrate", "continuity", "broadly", "substantive", "expand", "open", "contemplate", "provide", "accelerate", "define" and variations of these words as well as other similar words or statements that certain events or conditions "could", "may", "would" or "will" occur. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results implied or expressed in such forward-looking statements. Such factors include, among others: the uncertainty that any mineralization encountered on adjacent properties continues on to TDG tenure for any appreciable distance; the uncertainty that geological and/or geophysical and/or geochemical anomalies and/or any trends, interpretations, or conclusions based on adjacent properties have relevance to TDG's tenure; whether the Aurora West Zone mineralization is open along strike and/or dip and/or laterally in any direction and whether the mineralization will subsequently be demonstrated to be of economic interest; whether the planned drill spacing is appropriate and will sufficiently define any further mineralization identified to standards required to define mineral resources, once all assays are received; the actual results of current and planned exploration activities including whether the exploration program will be extended through some or all of the winter; the actual timing of current and planned exploration activities; changes in project parameters as plans to continue to be refined ; whether exploration at the Anyox property will result in any exploration targets of merit; accidents, labour disputes and other risks of the mining industry; the availability of sufficient funding on terms acceptable to the company to complete the planned work programs; delays in obtaining governmental approvals or financing; and fluctuations in metal prices. There may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.

Figure 1 : Aurora West Zone Drill Hole Location Map.

Figure 2 : Aurora West Zone Vertical Section. 200 metre envelope width looking east .

Photos accompanying this announcement are available at:
https://www.globenewswire.com/NewsRoom/AttachmentNg/2c921cb6-3c6f-4a98-8f4e-1c9604771b04
https://www.globenewswire.com/NewsRoom/AttachmentNg/663ad776-595a-4dbb-9057-668340df7679