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Terra Clean Energy Corp Announces Commencement of Trenching and Drill Pad Construction at the Marysvale Uranium Mines Project

Drill Results

TERRA CLEAN ENERGY CORP ANNOUNCES

COMMENCEMENT OF TRENCHING AND DRILL PAD

CONSTRUCTION AT THE MARYSVALE URANIUM MINES

PROJECT

Contractor to construct five drill pads and excavate seven exploration trenches

Vancouver B.C., September 10, 2026 – TERRA CLEAN ENERGY CORP. (“Terra” or the

“Company”) (CSE: TCEC, OTCQB: TCEFF, FSE: C9O0) is pleased to announce that it has

engaged Rollins Construction & Trucking of Milford Utah to begin field operations at the

Company's 100%-owned Marysvale Uranium Mines Project in Marysvale, Utah. Mobilization and

site work are scheduled to begin September 21, 2026.

Rollins Construction will construct the five permitted drill pads and excavate seven exploration

trenches. The work will also include preparation of the access routes required to safely support

field crews and equipment.

The trenching program is designed to expose targeted uranium -bearing outcrops for geological

mapping, radiometric surveying and systematic sampling. Information collected from the trenches

will be integrated with the Company's historical database, three -dimensional geological model,

and recently completed airborne radiometric and photogrammetric surveys to further refine

priority drill targets.

Once the pads are completed, they will support Terra's planned diamond core drilling program at

Marysvale. The initial drill program is designed to test priority targets associated with the historic

Prospector and Freedom mine areas and extensions identifi ed through the Company's ongoing

technical work.

"With the contractor now engaged and a September 21 start date established, we are moving from

planning and permitting into active field operations at Marysvale," said Greg Cameron, Chief

Executive Officer of Terra Clean Energy. "The five drill pads and se ven trenches will give our

geological team direct access to the priority areas identified through our historical data

compilation, 3D modelling and airborne surveys. This work is an important step toward drilling

and evaluating the broader potential of the Marysvale Uranium Mines Project."

The project-area map below shows the five planned drill pads, seven trench locations, proposed

new roads, existing roads and the Company's claim block.

Figure 1. Proposed Marysvale field-work layout. The seven trench sites are labelled Trenches 1-6 and 8 on the

project map.

The Company will provide additional updates as site preparation, trenching and the planned drill

program advance.

Qualified Person

The technical information in this news release has been prepared in accordance with Canadian

regulatory requirements set out in National Instrument 43 -101 and reviewed and approved on

behalf of the Company by C. Trevor Perkins, P.Geo., the Company's Vice President, Exploration,

and a Qualified Person as defined by National Instrument 43-101.

About Terra Clean Energy Corp.

Terra Clean Energy Corp. is a Canadian -based uranium exploration and development company

advancing a portfolio of uranium projects in the United States and Canada. The Company's assets

include the Marysvale Uranium Mines Project in Utah, uranium exploratio n properties in

Wyoming, and the South Falcon East uranium project in Saskatchewan's Athabasca Basin.

ON BEHALF OF THE BOARD OF TERRA CLEAN ENERGY CORP.

“Greg Cameron”

Greg Cameron, CEO

Forward-Looking Information

This news release contains certain statements that may be deemed “forward -looking

statements”. Forward -looking statements are statements that are not historical facts and are

generally, but not always, identified by the words “expects”, “plans”, “anticipat es”, “believes”,

“intends”, “estimates”, “projects”, “potential” and similar expressions, or that events or

conditions “will”, “would”, “may”, “could” or “should” occur. Forward -looking statements may

include, without limitation, statements relating to the Company’s planned exploration activities

on properties and the potential development of mineral resources and mineral reserves which

may or may not occur. Although the Company believes the expectations expressed in such

forward-looking statements are base d on reasonable assumptions, such statements are not

guarantees of future performance, are subject to risks and uncertainties, and actual results or

realities may differ materially from those in the forward-looking statements. Such material risks

and uncertainties include, but are not limited to: competition within the industry; actual results

of current exploration activities; environmental risks; changes in project parameters as plans

continue to be refined; future price of commodities; failure of equipment or processes to operate

as anticipated; accidents, and other risks of the mining industry; delays in obtaining approvals or

financing; risks related to indebtedness and the service of such indebtedness; as well as those

factors, risks and uncertainties identified and reported in the Company’s public filings under the

Company’s SEDAR+ profile at www.sedarplus.ca. Although the Company has attempted to

identify important factors that could cause actual actions, events or results to differ materially

from those described in forward -looking information, there may be other factors that cause

actions, events or results not to be as anticipated, estimated or intended. Accordingly, readers

should not place undue reliance on forward-looking statements. There can be no assurance that

such information will prove to be accurate as actual results and future events could differ

materially from those anticipated in such statements. Forward -looking statements are made as

of the date hereof and, accordingly, are subject to change after such date. The Company disclaims

any intention or obligation to update or revise any forward -looking information, whether as a

result of new information, future events or otherwise unless required by law.

Neither the CSE nor its Regulation Services Provider (as that term is defined in the policies of

the CSE) accepts responsibility for the adequacy or accuracy of this release.

For further information please contact:

Greg Cameron, CEO

[email protected]

416-277-6174

Terra Clean Energy Corp

1133 Melville Street, Suite 2700

Vancouver, BC V6E 4E5

www.tcec.energy