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Eastport Provides Drilling Updates at Matsitama Copper, Semarule REE and Foley Uranium

Exploration Programs

Eastport Provides Drilling Updates at

Matsitama Copper, Semarule REE and Foley

Uranium

Vancouver, British Columbia--(Newsfile Corp. - December 23, 2025) - Eastport Critical Metals

Corp. (TSXV: EVI) ("

Eastport

" or the "

Company

") announces updates in relation to the three drill

programs announced and commenced across the Company's critical metals projects in Botswana;

Matsitama Copper (

drill commencement press release can be viewed

here

), Semarule REE (

drill

commencement press release can be viewed

here

)

& Foley Uranium (

drill commencement press

release can be viewed

here

).

Highlights:

Drilling Pause and Resumption

: All three drill programs have been temporarily paused for the

holiday season, with operations scheduled to recommence across the projects in mid-January

2026.

Matsitama Copper Project

: Combined diamond and reverse circulation (RC) drilling targeting

potential future resource definition and extension at the historic

Nak prospect

; initial

reconnaissance RC drilling to test the extensive 25 km

Copper-Cobra

soil anomaly; and RC

drilling along the southern extension of the active Kopano mine,

Kopano-South

, and the

prospective 85 km Bushman fault structure (over 60 km within Eastport's licences).

Semarule Rare Earth Elements Project

: Phase 1 diamond drilling program underway to test the

multi-phase syenite intrusion at Semarule Hill, following encouraging prior rock chip sampling for

total rare earth oxides (TREO).

Foley Uranium Project

: Phase 1 RC drilling program initiated to test a continuous >15 km paleo-

channel extending from the adjacent Letlhakane Uranium Deposit (owned by Lotus Resources).

Rick Bonner, Director & VP Ex, commented,

"

Eastport have made a solid start in our Phase 1 efforts. The holiday break provides an opportunity for

the team to take time to reflect on the volume of work behind us, and to prepare for a busy 2026 where

drilling will resume and results will begin to flow."

1

.

Matsitama Copper: Drill Program Update

(Figure 1: Green Collar ID - Drilling Completed at Program as at today)

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/8324/278859_b3ebc99904b5bb3b_001full.jpg

Drilling Completed to date:

PROSPECT

DIAMOND DRILL METRES /

HOLES

RC DRILL METRES / HOLES

Nak*

1,228m / 8

Nak Exploration

1,307.6m / 7

Copper-Cobra**

450m / 9

Kopano South***

700m / 14

Nak*:

Consistent with the Qualified Persons recommended expenditures, the drilling at NAK has

focused on infill of sections, twining of historic holes, and testing extensions of the deposit. These holes

will assist with the planned 2026 resource statement.

Nak Exploration

: Diamond drill holes were testing a number of targets to the northwest and east of the

Nak deposit.

Copper-Cobra**:

RC drilling on the ~25km copper-in-soil anomaly delivered 453 chip samples for

assays, and lithology to assist with mapping the subsurface.

Kopano South***:

Kopano South sits south of the historic Kopano Mine (previously known as

Mowana), a copper mining operation.

RC drilling delivered 700 chip samples for assays and lithology to

assist with mapping the subsurface. All RC chip samples have been collected in accordance with

industry-standard procedures and will be submitted to an independent accredited laboratory for analysis,

with appropriate QA/QC protocols applied.

2

.

Semarule: Drill Program Update

(Figure 2: Red Collar ID's - Drill Holes Completed / Orange Collar ID's - Drill Holes Pending)

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/8324/278859_b3ebc99904b5bb3b_002full.jpg

Breakdown of Drilling Completed thus far:

PROSPECT

DIAMOND DRILL METRES /

HOLES

RC DRILL METRES / HOLES

Semarule*

750m /2

0

Semarule*:

Drill hole SEM003, the initial hole of the program, was completed to a depth of 400 meters

and intersected a sequence of syenite transitioning to pyroxenite-rich intervals, including intervals of

fenitized syenite with calcite veining up to 15 cm thick and rare sulphides. Downhole geophysics has

been completed to refine targeting for follow-up drilling.

SEM005, located 1.2 km east of SEM003, was completed to a depth of 350 meters.

Mafic-rich syenite

was intersected from surface to 310m.

No assay results are available at this time, and all interpretations are based solely on geological logging.

Further updates will be provided as additional data becomes available.

3

.

Foley Uranium: Drilling Update

(Figure 3: Red Collar ID's - Drill Holes Completed / Orange Drill Collar ID's - Drill Holes Pending)

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/8324/278859_b3ebc99904b5bb3b_003full.jpg

Breakdown of Drilling Completed thus far:

PROSPECT

DIAMOND DRILL METRES /

HOLES

RC DRILL METRES / HOLES

Foley*

0

920 / 9

Foley*:

Nine RC holes were completed on the first of three fences. Depths to the basement rocks in

holes 6 to 9 increased as expected validating the concept of a paleo-channel cut into the paleo-surface.

Downhole gamma logging is presently underway.

Qualified Person

The information in this news release has been reviewed and approved by Liz de Klerk

Pri.Sci.Nat.,FIMM, of Micon International, an independent consultant and Qualified Person as that term is

defined in National Instrument 43-101.

Location Map of Eastport's Projects in Botswana

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/8324/278859_b3ebc99904b5bb3b_004full.jpg

About Eastport Critical Metals Corp.

Eastport is a disruptive 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 PGE's 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 per capita with a 50-year track 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 activity in the natural resources sector in recent years.

For further information about Eastport Critical Metals Corp., please contact:

Burns Singh Tennent-Bhohi

CEO and Director, Eastport Critical Metals Corp.

[email protected]

[email protected]

Investor Relations

KIN Communications Inc.

604-684-6730

[email protected]

Disclaimer for Forward-Looking Information

This news release contains forward-looking statements including but not limited to statements

regarding the Company's business, assets or investments, as well other statements that are not

historical facts. Readers are cautioned not to place undue reliance on forward-looking statements, as

there can be no assurance that the plans, intentions or expectations upon which they are based will

occur.

By their nature, forward-looking statements involve numerous assumptions, known and

unknown risks and uncertainties, both general and specific, that contribute to the possibility that the

predictions, forecasts, projections and other forward-looking statements will not occur, which may

cause actual performance and results in future periods to differ materially from any estimates or

projections of future performance or results expressed or implied by such forward-looking statements.

These assumptions, risks and uncertainties include, among other things, the state of the economy in

general and capital markets in particular, investor interest in the business and prospects of the

Company.

The forward-looking statements contained in this news release are made as of the date of this news

release. Except as required by law, the Company disclaims any intention and assumes no obligation

to update or revise any forward-looking statements, whether as a result of new information, future

events or otherwise, except as required by applicable securities law. Additionally, the Company

undertakes no obligation to comment on the expectations of, or statements made, by third parties in

respect of the matters discussed above.

Neither the 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.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/278859