Adamera defines 2.8 km IP anomaly at Max copper-gold target, South Hedley

Vancouver, British Columbia – TheNewswire - September 2, 2026 – Adamera Minerals Corp. (TSX-V: ADZ; OTC: DDNFF) (“Adamera” or the “Company”) announces partial results from an induced polarization (IP) survey that has identified a strong chargeability anomaly measuring at least 2.8km in width with evidence of full width in the range of 4km, at the 100% owned South Hedley Copper-Gold Property in southern British Columbia. The survey is continuing.

The chargeability response of the 2D inversion indicates that the anomaly persists below 325m depth. The Company interprets it as evidence of a buried sulphide system of considerable strength and extent. Volcanic rocks dominate surface exposures, however, one rock sample above the anomaly was identified as a sulphide-bearing dioritic intrusive rock. The intrusive carries copper values ranging from 200 to 2000 ppm (see photo below).

The South Hedley Copper-Gold Property is located within the Quesnel Trough, which hosts several of British Columbia’s largest copper-gold porphyry mines. The IP anomaly is on the Max target situated 18km east of the Copper Mountain mine and 18km west of the Nickel Plate gold mine, near Hedley, B.C. The scale of the chargeability anomaly at Max appears to be similar to that surrounding the nearby Copper Mountain deposit.

The IP Survey

The pole-dipole IP survey is being conducted along 5km lines spaced 400m apart. Data are collected at 100m dipole stations, with an estimated depth penetration of approximately 325m.

Inversion modelling of the IP data shows a chargeability anomaly measuring at least 2.8km in width, and up to 4km depending on interpretation. To date, two 5km long lines spaced by 400m, L2600 and L3000, have been completed (Figure 1). A third line is currently underway.

Chargeability increases below the volcanic rocks at surface, suggesting a sulphide source at depth. Peak chargeability values greater than 50 mV/V have been measured in the field, with the highest inverted values reaching 77 mV/V on L2600 and 59 mV/V on L3000.

In August, a rock sample collected over the chargeability anomaly was described in the field as a porphyritic diorite intrusive with sulphides. Preliminary portable XRF analysis of this sample, MR26-12, returned anomalous copper values of 200 to 2000 ppm.

“An undrilled copper-gold porphyry target of this size and strength, 18km from a producing copper mine in an established district, is not something that often turns up,” stated Mark Kolebaba, President and CEO of Adamera Minerals. “We will continue to work to provide further evidence of a concealed sulphide system. The next steps are straightforward: extend the IP survey, process the soil and rock samples and drill the resulting targets.”

The Target Characteristics

Proven belt: The Max Target sits in the Quesnel Trough, a prolific porphyry copper-gold belt in south-central B.C., 18km from the producing Copper Mountain mine.

A classic porphyry geochemical response: A 2x3 km copper±gold-in-soil anomaly at Max forms a horseshoe pattern around younger volcanic cover. Copper in soil reaches 1,450 ppm and gold reaches 1.34 g/t. The anomaly remains open to the north, west and possibly east. Approximately 1800 additional soil samples have been collected to define the copper anomaly to the west and north.

A buried intrusive source: Ground magnetic surveying defines a 2x3 km magnetic high centred within the soil anomaly. The magnetic anomaly is interpreted as a buried intrusive body with a modelled top at approximately 110m depth.

Geophysical evidence of sulphides at depth: An extensive chargeability anomaly persists below 325m depth, where elevated chargeability is combined with moderate-to-elevated resistivity rather than a low-resistivity conductor. This is interpreted as a buried sulphide system.

Surface evidence of the mineralizing system: Rocks identified at surface indicate an underlying mineralizing system. Gold-bearing veins beneath the volcanic cap are exposed in an incised valley. They are interpreted as a link to the buried target. In August 2026, ground-truthing along the IP line identified possible porphyry-style alteration as well as intrusive rocks with copper ranging from 93 ppm to 350 ppm and as high as 2034 ppm.

Operational Details

Because IP surveying uses electrical current, it is subject to more wildfire restrictions than other exploration activities. Through the season, the IP survey was affected by numerous wildfire restrictions, including a complete shutdown of the IP program on August 11. While the IP survey was suspended, the crew shifted to soil sampling and ground magnetic surveying. Adamera collected an additional 1800 soil samples. Results are pending.

Wildfire risk and associated restrictions have eased due to cooler temperatures and recent rainfall. The IP surveying has resumed, with a third line now underway.

Next Steps

The Company has added drill sites to its drill permit application based on the current IP survey and August 2026 program. Continued work includes:

IP survey: Continue IP surveying along 5km north-south lines spaced 400m apart. A third line, L2200, is underway over the Max Prospect, where soil samples contain up to 1450 ppm copper and 1.34 g/t gold.

Rock Sample Analysis: Geochemical and petrographic analysis will be completed on numerous rock samples including MR26-12.

Soil geochemistry: Geochemical processing of approximately 1800 soil samples over the Max Copper-Gold target.

Geological follow-up: Continue prospecting along IP anomalies to identify sulphide sources and overlying alteration.

Drilling: Advance the pending drill permits to test the developing targets.

2D Inversion Results

Click Image To View Full Size

Figure 1: Chargeability 2D inversion, lines L2600 and L3000, 100m electrode spacing. Warm colours (red/magenta) indicate elevated chargeability (mV/V), interpreted by the Company as evidence of a sulphide-bearing system at depth. Peak inverted values reach 77 mV/V on L2600 and 59 mV/V on L3000.

Click Image To View Full Size

Photo: Porphyritic intrusive rock with sulfides found in outcrop above IP

chargeability corridor. Copper values ranging from 200 to 2000 ppm.

Qualified Person

Martin St. Pierre, P.Geo., a qualified person as defined by National Instrument 43-101, has reviewed and approved the technical content of this news release. Portable XRF analysis of rock samples is preliminary in nature, is used as a field-screening technique, and has not been verified by an accredited laboratory. The Copper Mountain and Nickel Plate mines are located on properties adjacent to or near the South Hedley Property. Mineralization on those properties is not necessarily indicative of mineralization on the South Hedley Property.

About Adamera

Adamera Minerals Corp. is targeting critical metals in the U.S. and copper-gold in southern British Columbia. In Washington State, the Company is advancing a tungsten portfolio intended to support a secure domestic supply for U.S. markets. In Canada, Adamera is exploring the South Hedley Copper-Gold Project and maintains several drill-ready gold projects in its portfolio.

On behalf of the Board of Directors,

Mark Kolebaba

President & CEO

For additional information please contact:

Email: info@Adamera.com

Website: www.Adamera.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. Statements in this press release, other than purely historical information, including statements relating to the Company’s future plans and objectives or expected results, may include forward-looking statements. Forward-looking statements are based on numerous assumptions and are subject to all of the risks and uncertainties inherent in resource exploration and development. As a result, actual results may vary materially from those described in the forward-looking statements.

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TheNewsWire

September 2, 2026 - 4:30 AM PDT

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