Mr. Daniel Major reports

EASTPORT SOIL GEOCHEMISTRY RESULTS AT SELEBI-EAST PROJECT IDENTIFY TWO FURTHER MULTI KILOMETRE NICKEL-COPPER ANOMALIES TRACKING PROSPECTIVE AMPHIBOLITE HOST ROCKS

Eastport Critical Metals Corp. has completed the phase II geochemistry and geophysical exploration program at the Selebi-East project, which is prospective for nickel, copper and platinum group elements (PGE), in northeast Botswana. The phase II program initial results were announced Aug. 12, 2026. The program built on existing geochemical soil anomalies and untested geophysical conductors within the same geological domain as the nearby Selebi mine held by NexMetals Mining Corp.

• Eastport's Selebi-East project is located on the Selebi-Phikwe belt, which hosts multiple historic nickel-copper mines.
• Phase II soil sampling program has supported a close correlation to the mapped trend of the amphibolite host rocks at the nearby NexMetals Selebi mine seven kilometres to the west.
• Final phase II survey results highlight a further two additional nickel-copper anomalies both extending over multiple kilometres, including the first set of results (as announced Aug. 12, 2026), the completion of this program has now generated more than four multikilometre soil geochemical signatures

Daniel Major, chief executive officer, commented;

"The completion of the phase II soil sampling at our Selebi-East project has been of great value as we look to commence geophysics and final drill target definition.

"The soil geochemistry confirms a number of highly encouraging vectors which signature replicate the regional setting of the NexMetals Selebi mine, a mine that was in production for over approximately 40 years. Significantly, these multiple soil anomaly vectors are also of district scale.

"The work that the team have conducted to date puts Eastport in a fantastic position to progress to drilling. I look forward to providing further updates at Selebi-East pending engagement for geophysics."

The NexMetals Selebi mine is a past-producing underground copper, nickel and cobalt operation. According to NexMetals reporting, there are considerable remaining nickel and copper resources and ongoing exploration drilling indicates the deposit remains open at depth.

The soil geochemical sampling method that has defined Eastport's multikilometre nickel-copper soil anomalies is the same exploration technique used by Bamangwato Concessions Ltd. (BCL) to discover the neighbouring Selebi mine in 1963. BCL's geochemical soil sampling conducted in stages from 1959 to 1963, defined a clear 1.6-kilometre-long nickel-copper anomaly sitting over the surface expression of the underlying amphibolite geology. That anomaly became a formal mineral discovery mid-1963, when subsequent drilling by BCL, targeting the anomaly, intersected sulphides hosted within the amphibolite.

At the Selebi mine, the weathering of near-surface mineralized amphibolite released nickel and copper into the residual soils, creating a coherent 1.6 km geochemical anomaly directly overlying the host rock, which guided the drilling that discovered the sulphide mineralization.

Eastport's current geochemical results are interpreted to show a comparable spatial coincidence between elevated nickel-copper values in soil and the mapped amphibolite units within the same Selebi-Phikwe belt. Whilst soil anomalies alone do not confirm the presence of economic mineralization at depth, the repeated association of this geochemical signature with amphibolite-hosted deposit across the belt increases the potential that similar mineralizing systems may be present at the Selebi-East project.

The Selebi-East project, located only seven kilometres from the Selebi mine, comprises five prospecting licences where historical exploration has identified potential nickel-copper mineralization.

QA/QC (quality assurance/quality control)

The company employed the following methodology to collect each soil sample. A small area (0.25 square metre) was shovel scrapped to clear the surface of organic matter and larger loose material. A small hole was dug to approximately 30 centimetres and then a sample was collected. At each site approximately four to five kilograms of soil was passed through a sieve nest to collect only material passing the four-millimetre sieve. A duplicate sample was collected at every 20th station. The sample was bagged and tagged and transported back to the camp.

At the base camp each sample was split into two using a riffle splitter; one for a backup archive and the second for export to ALS Global in Johannesburg. Both samples are placed in clear plastic bags with sample tags stapled into the folded lip to protect the tag. Samples were exported in batches of approximately 20 per plastic-woven sack, under cover of Export Permits, by courier. Each plastic-woven sack is secured using cable ties.

At ALS each sample was weighed and then screened to negative 180 micrometres. The negative 180 mum was prepared using PREP41 followed by ME-MS41L, an ICP-MS technique. The received weight was reported along with 34 elements. ALS also inserts a series of standards, duplicates and blanks inserting on average 20 per 100 samples. The results of the QA/QC inserts are reported to the company. Pulps are periodically returned to Eastport in Botswana.

Qualified person

The technical information in this news release has been reviewed and approved by Nicholas O'Reilly MIMMM (QMR) MAusIMM MSc DIC, an independent consultant and qualified person under National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

About Eastport Critical Metals Corp.

Eastport is a critical minerals development company advancing five projects in Botswana, with cumulative historical and current expenditures approaching $20-million. The company's most advanced asset is the Matsitama copper project, which hosts multiple sizeable targets across the Matsitama copper district.

The company's additional projects include Selebi East, a nickel-copper-cobalt project located seven kilometres east of the historic Selebi Mines; the Semarule rare-earth elements project, positioned within the Gaborone-Molepolole corridor; the Foley uranium project, adjoining the Letlhakane uranium deposit; and the Keng project, which targets nickel, copper and PGEs on the northern margin of the Molopo Farms complex.

Botswana is widely regarded as one of Africa's strongest mining jurisdictions, combining the continent's highest GDP (gross domestic product) per capita with a 50-year record of large-scale mineral development since the Orapa diamond discovery in 1967. The country ranks among the top performers globally on the Fraser Institute's Investment Attractiveness Index and is the highest-rated jurisdiction in Africa on the Policy Perception Index. These rankings reflect Botswana's stable regulatory environment, consistent rule of law and long-standing support for responsible mineral development -- factors that have underpinned significant investment and major M&A (mergers and acquisitions) activity in the natural resources sector in recent years.

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