Green Bridge Metals Intersects 195.0 Metres Grading 0.25% Cu and 10.18% TiO2 at Titac South, Minnesota; Step-Out Hole Confirms Mineralization at Previously Untested Geophysical Target

VANCOUVER, BC / ACCESS Newswire / September 10, 2026 / Green Bridge Metals Corporation (CSE:GRBM)(OTCQB:GBMCF)(FWB:J48, WKN: A3EW4S) (“Green Bridge” or the “Company“) is pleased to report the final assay results from its Phase 1 diamond drill program at the Titac Project, located within the Company’s South Contact Zone Project in northeastern Minnesota, U.S.A. (Figure 1).

Highlights

• At Titac South, drill hole TS26-004a intersected 195.0m grading 0.25% Cu and 10.18% TiO₂, including 62.0m grading 0.29% Cu and 10.54% TiO₂. The core hole transected the southwest portion of the mineralized zone from southeast to northwest and confirmed the existing mineralization.
• Final assay results received for all remaining holes from the six-hole Phase 1 Titac South program.
• Exploratory step-out hole TS26-007, testing a previously untested geophysical target, returned 12.0 m @ 0.20% Cu, 8.33% TiO₂, 0.15% V₂O₅, intersecting mineralization associated with the geophysical anomaly.
• Results support the effectiveness of 3D VTEM inversion modelling as a targeting tool for Oxide Ultramafic Intrusions on the property, with 5 of the 8 identified targets remaining untested and available for future drill programs (Figure 3).
• All six Phase 1 holes intersected sulphide mineralization, consistent with the geological model (see News release dated May 27, 2026).
• Phase 1 results have increased the Company’s confidence in the Titac South geological model and have supported the Company’s decision to accelerate its Phase 2 drilling program. Phase 2 is designed to advance Titac by targeting the inclusion of copper and expansion of the existing resource at Titac North, and, together with ongoing metallurgical test work, supporting a scoping study by the end of 2027.

Assay results have now been received for the remaining three holes of the six-hole Phase 1 program at Titac South. These results include an exploratory step-out drill hole that tested a previously untested geophysical anomaly identified through 3D VTEM inversion modelling. The step-out hole intersected copper and titanium dioxide mineralization associated with Oxide Ultramafic Intrusion (“OUI”) host rock, validating the targeting approach and supporting follow-up exploration for possible additional mineralized zones at the Company’s other targets on the Titac property. To date, 3 of the 8 geophysical (OUI) targets identified on the property have been drill-tested, leaving 5 targets untested and available for future exploration (Figure 2; Appendix 1).

David Suda, President and Chief Executive Officer, commented: “The final assay results from our six-hole Phase 1 program at Titac South provide further confidence in our geological interpretation of the system, and show copper consistently occurring alongside titanium in the mineralization. Equally significant is our step-out hole, which successfully intersected copper and titanium mineralization at a previously untested geophysical target, validating our 3D VTEM inversion model as an effective tool for identifying new mineralized zones, with five additional targets across the property now available for follow-up drilling. Given Phase 1 results, we are accelerating Phase 2 well ahead of the previously planned 2027 program. Our Phase 2 goal is to bring copper into our existing titanium resource and expand it through additional drilling at Titac North. Details of the Phase 2 program will be announced shortly.”

Figure 1: Map of the South Contact Zone Project showing Titac property at the southern end.

Figure 2: Map of the Titac property showing the geophysical targets (red polygons), and recent drill program on the right. On the left is the modelled Cu (0.27% cutoff) looking northeast. Results from the recent assays are labelled with bold traces, while drill results from earlier in the 2026 program are shown as narrower lines.

Figure 3: Image (viewing east-southeast) showing the regional 3D VTEM Inversion model with current and historic drill holes. Titac North, Titac South, the OUI mineralization intersected in drillhole TS26-007, and an untested OUI to the SE are annotated around the blue OUI shapes identified through inversion modeling from the 2025 VTEM survey at Titac.

Technical Overview The Titac property forms part of the Company’s South Contact Zone Project in the Duluth Complex. Titac South hosts an inferred mineral resource estimate of 46.6 million tonnes grading 15% TiO₂ (see the National Instrument 43-101 (“NI 43-101”) technical report entitled “Technical Report and Mineral Resource Estimate for the South Contact Zone Project, St. Louis County, Minnesota, USA” with an effective date of September 18, 2024, as available under the Company’s profile at www.sedarplus.ca).

Inferred mineral resources have a high degree of uncertainty as to their existence and as to whether they can be mined economically. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Mineral resources that are not mineral reserves do not have demonstrated economic viability.

The Phase 1 program was designed to evaluate copper distribution within the known titanium resource at Titac South and to test the predictive value of 3D VTEM inversion modelling. The step-out hole targeted one of several previously unrecognized anomalies that exhibit coincident magnetic and conductive responses consistent with known mineralized OUIs.

Significant Assay Results – Titac South

Assay results from the remaining three holes are summarized in Table 1 below. Results from the first three holes (TS26-002a, TS26-003 and TS26-005) were previously reported on May 27, 2026 (See Company News Release Dated May 27, 2026). All reported intervals are downhole lengths. True widths cannot currently be determined with confidence because of the irregular geometry of the mineralized zones.

*For each hole, the first row (shaded, aligned with the drill hole ID) reports the calculated interval for the entire hole.
*Full table of results including collar locations, azimuth, dip, and total depth available in Appendix 1.

Quality Assurance and Quality Control

Green Bridge Metals exploration samples were collected in accordance with industry standards and best practices. All samples were submitted to Activation Laboratories Ltd. in Thunder Bay, Ontario, for geochemical analysis. Analytical methods included fire assay with ICP-OES analysis for gold and platinum group elements, sodium peroxide fusion with ICP-OES analysis for trace elements, and lithium metaborate fused-disc XRF analysis for major element composition. Activation Laboratories Ltd. is independent of the Company.

For historical assay information, and for a further discussion of the Company’s QA/QC, data verification, analytical and testing procedures, readers should refer to the “Technical Report and Mineral Resource Estimate for the South Contact Zone Project, St. Louis County, Minnesota, USA” with an effective date of September 18, 2024, prepared by independent Qualified Persons (as defined in NI 43-101) Michael B. Dufresne (P.Geol., P.Geo.), Andrew J. Turner (P.Geol., P.Geo.), Fallon T. Clarke (P.Geo.) and Christian Bohm (P.Geo.), a copy of which may be obtained under the Company’s profile at www.sedarplus.ca

Lengths reported in this news release are drill intersections and not necessarily true widths. The locations and distances shown on maps are approximate. Geological interpretations in this news release are those of the Company.

Qualified Person

The scientific and technical information contained in this news release has been reviewed and approved by George Hudak, Chief Geologist of Green Bridge Metals Corporation, who is a Qualified Person as defined by NI 43-101.

About Green Bridge Metals

Green Bridge Metals Corporation is a North American mineral exploration company focused on the discovery and development of critical mineral assets in tier-one jurisdictions. The Company’s South Contact Zone Project in Minnesota hosts titanium-copper-vanadium mineralization within the Duluth Complex. The Company is committed to responsible exploration practices and the development of domestic supply chains for the minerals essential to the clean energy transition and national security.

On Behalf of Green Bridge Metals Corporation

David Suda, President and Chief Executive Officer

For further information please contact:

David Suda President & CEO
Tel: 604-928-3101
Email: investors@greenbridgemetals.com

Forward-Looking Information.

Certain statements and information in this news release constitute “forward-looking information” within the meaning of applicable Canadian securities laws (collectively, “forward-looking information”). Forward-looking information is based on expectations, estimates and projections as at the date of this news release and is generally identifiable by words such as “anticipates”, “believes”, “expects”, “intends”, “plans”, “targets”, “may”, “will”, “could”, “should”, “potential” and similar expressions, or statements that certain actions, events or results “will”, “may” or “could” occur or be achieved. Forward-looking information in this news release includes statements regarding: the interpretation and significance of the Phase 1 assay results and geophysical anomalies; the scale, continuity and copper distribution of the Titac mineralized system; the effectiveness of 3D VTEM inversion modelling as a targeting tool; the existence, location and prospectivity of untested targets and the potential to identify additional mineralized zones; the acceleration, timing, design, scope and objectives of Phase 2 drilling and the timing of any related announcement; the potential inclusion of copper in a future updated mineral resource estimate; the potential expansion or upgrading of the existing mineral resource, including through drilling at Titac North; the timing, scope and results of future exploration, drilling, modelling and metallurgical test work; and the Company’s evaluation, preparation and targeted completion by the end of 2027 of a potential scoping-level study.

Forward-looking information is based on management’s reasonable assumptions, estimates, analyses and opinions as of the date hereof, including assumptions regarding: the accuracy and reliability of assay results, sampling and analytical data and the Company’s geological and geophysical interpretations; the continuity and geometry of mineralization; the ability of 3D VTEM inversion modelling to identify prospective drill targets; the availability of equipment, personnel, contractors, supplies and services on acceptable terms; the Company’s ability to obtain required permits, authorizations and land access in a timely manner; the availability of financing on acceptable terms; commodity prices, foreign exchange rates and market conditions; the results and timing of future drilling, modelling and metallurgical test work; and the absence of material adverse changes affecting the Company or the Titac Project. While the Company considers these assumptions reasonable as of the date of this news release, they may prove to be incorrect.

Forward-looking information is inherently subject to known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements to differ materially from those expressed or implied by such forward-looking information. These risks and uncertainties include, among others: the speculative nature of mineral exploration and development; the possibility that future drilling will not confirm the Company’s geological or geophysical interpretations, the continuity or grades of mineralization, or the prospectivity of untested targets; uncertainty in the estimation of mineral resources, including the risk that further work will not support the inclusion of copper in, or an expansion or upgrade of, a future mineral resource estimate; the inability to determine true widths at this stage; variations in assay results, geological interpretation and metallurgical performance; the risk that exploration, drilling, modelling, test work or a scoping-level study may be delayed, modified, suspended or not completed; the availability and cost of financing, equipment, labour and services; permitting, environmental, land access, community relations and regulatory risks; changes in commodity prices, foreign exchange rates, capital and operating costs or market conditions; title and tenure risks; environmental hazards, accidents, weather and other operational risks; changes in applicable laws and policies; and the other risks disclosed in the Company’s public filings. Mineral exploration involves substantial risk, and there can be no assurance that ongoing or future work will result in the discovery of a mineral deposit, the delineation or expansion of a mineral resource, the conversion of an inferred mineral resource to a higher category, the definition of a mineral reserve or the development of a mine.

Although the Company has attempted to identify important factors that could cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated or intended. Readers are cautioned not to place undue reliance on forward-looking information. The forward-looking information contained in this news release is provided as of the date hereof, and the Company disclaims any intention or obligation to update or revise such information, whether as a result of new information, future events or otherwise, except as required by applicable securities laws.

The Canadian Securities Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this news release.

Appendix 1: Titac South 2026 Drill Program Interval Results