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Terra Clean - NI 43-101 Technical Report - Marysvale Uranium Mines Project

Resource Estimates Corporate Updates

Terra Clean Energy Corp. Files NI 43-101 Technical Report For

the Marysvale Uranium Mines Project, Utah

Vancouver B.C., June 10, 2026 – TERRA CLEAN ENERGY CORP. (“Terra” or the “Company”) (CSE:

TCEC, OTCQB: TCEFF, FSE: C9O0) is pleased to announce that it has completed an independent

National Instrument 43 -101 – Standards of Disclosure for Mineral Projects (“ NI 43 -101”)

Technical Report (the “ Technical Report ”) for its wholly -owned Marysvale Uranium Mines

Project located in the historic Marysvale Uranium District, Piute County, Utah, USA (previously

referred to by the Company as the Prospector Freedom Mines Project). The Technical Report will

shortly be filed under the Company’s profile on SEDAR+ and will be available for review by

shareholders and interested parties. The Technical Report is being filed by the Company on a

voluntary basis as contemplated under section 4.2(12) of Companion Policy 43-101CP to National

Instrument 43-101 -Standards of Disclosure for Mineral Projects (“NI 43-101”). The project to

which the report relates is not on a property material to the Company and the Technical Report

is not being filed as a result of a requirement of Part 4 of NI 43-101.

The Technical Report represents a significant milestone in Terra’s systematic evaluation of the

Marysvale Uranium Mines Project and provides a comprehensive review of the property’s

geology, historical mining activities, exploration results, and future exploration potential. The

Technical R eport incorporates the Company’s recently completed data compilation program,

digitization of historical records, and interpretation of geological and structural information

collected from the project area. The project wa s acquired by Terra in early 2026 and includes

several past-producing uranium mines within one of the most historically productive uranium

districts in the western United States. For further details see the Company’s press release dated

February 18, 2026 – a copy of which can be found here: GlobeNewswire.

The Company has also completed airborne radiometric and photogrammetric surveys, acquired

and digitized available historical exploration and production data, and developed a three -

dimensional geological model to support drill targeting and future explorati on activities. Recent

work has identified multiple high-priority exploration targets that will be evaluated through the

Company’s planned summer drilling program. For further details see the Company’s press release

dated May 19, 2026 – a copy of which can be found here: GlobeNewswire.

Greg Cameron, Chief Executive Officer of Terra Clean Energy, commented: “The filing of this

independent NI 43 -101 Technical Report marks an important advancement for the Marysvale

Uranium Mines Project. Over the past several months our technical team has compiled and

digitized a substantial amount of historical data, completed modern geophysical surveys, and

developed a robust geological model of the property. The report confirms the strong exploration

potential of the project and provides a solid technical foundation as we move toward our initial

drill program. We believe the combination of historical production, encouraging exploration

indicators, and modern exploration techniques positions the Marysvale Uranium Mines Project

as an exciting uranium growth opportunity in the United States.”

The Company is currently advancing permitting for an initial 10,000 -foot core drilling program

designed to test priority targets identified through the technical review, airborne survey results,

and three-dimensional geological modelling. The objective of the drill program is to confirm and

expand known mineralization and evaluate extensions of historically productive uranium-bearing

structures.

Qualified Person

The scientific and technical information contained in this news release has been reviewed and

approved in accordance with the Canadian regulatory requirements set out in National

Instrument 43 -101, on behalf of the Company by C. Trevor Perkins, P.Geo., Vice President

Exploration for Terra Clean Energy Corp., 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.

The Company is currently developing the South Falcon East uranium project located in the

Athabasca Basin region, Saskatchewan, Canada as well as past producing uranium mines in Utah

and uranium exploration properties in Wyoming, United States. The Company’s strategy is to find

and advance late stage uranium projects to support growing demand for Nuclear Power and

secure domestic mineral supply chains

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; cha nges 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 relat ed 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