Terra Clean Provides Radiometric Survey Results
FORM 51–102F3
MATERIAL CHANGE REPORT
Item 1 Name and Address of Company
Terra Clean Energy Corp.
1133 Melville Street, Suite 2700
Vancouver, BC
V6E 4E5
Item 2 Date of Material Change
May 19, 2026
Item 3 News Release
The press release was issued on May 19, 2026 and was disseminated through the facilities of a recognized
newswire services. A copy of the press release was subsequently filed on SEDAR+ at www.sedarplus.ca.
Item 4 Summary of Material Change
The Company announced initial results from recently completed airborne radiometric and Photogrammetric
surveys at its Prospector Freedom Uranium Property in Piute County, Utah .
Item 5: Full Description of Material Change
5.1 Full Description of Material Change
Vancouver B.C., May 19, 2026 – TERRA CLEAN ENERGY CORP. (“Terra” or the “Company”) (CSE:
TCEC, OTCQB: TCEFF, FSE: C 9O0) is pleased to announce highly encouraging initial results from
recently completed airborne radiometric and Photogrammetric surveys at its Prospector Freedom Uranium
Property in Piute County, Utah (the “ Prospector Freedom Project ”). The Company has also mobilized
preparations for an extensive summer exploration program designed to rapidly advance the project toward
drill-ready targets.
The Prospector Freedom Project is located within a historically productive uranium district that has produced
approximately 1.33 Mlbs U3O8 at reported average grades of 0.22% * and benefited from extensive historical
exploration activity. Previous operators reported strong uranium grades and continuity along multiple
mineralized trends, underscoring the district -scale potential for additional discoveries and future resource
expansion.
Multiple High-Priority Uranium Targets Identified
The integrated airborne survey program was completed across the Company’s newly expanded 380-acre land
package and has successfully identified several high -priority exploration zones exhibiting characteristics
consistent with structurally controlled vein-style uranium mineralization. The survey was conducted by Land
Survey Advisors of Heber City, Utah using a DJI Matrice 400 RTK quadcopter using terrain following and
equipped with a Georadis D230A gamma ray spectrometer and a Zenmuse P1 45-megapixel mapping camera.
The radiometric survey outlined numerous discrete uranium anomalies associated with favorable host
lithologies and established regional mineralized trends. These anomalies are interpreted as potential near -
surface uranium-bearing zones and represent compelling follow-up targets for the Company’s upcoming field
program.
Figure 1: Uranium radiometric data draped over 3D terrain.
In parallel, the Photogrammetric survey delivered high -resolution 3D digital topographic data and 2D
orthomosaic photographs over the property. This information has aided in identifying terrain features and
shading which may represent alteration corridors and spatially coincide with the identified radiometric
anomalies. This is valuable for the development of a 3D model of the property and will aid significantly in
drill planning and targeting, significantly strengthening Terra’s confidence in the exploration targets.
Figure 2: High resolution photomosaic draped over 3D terrain showing high detail of ground features.
“The combination of radiometric and Photogrammetric data has materially advanced our understanding of
the Prospector Freedom P roject,” stated Greg Cameron, CEO of Terra . “We are especially encouraged by
the strong correlation between radiometric anomalies and terrain features identified. This integrated dataset
has generated several compelling drill targets and provides a strong foundation for the next phase of
exploration.”
Strategic Expansion of the Property Position
Earlier this year, Terra strategically expanded the Prospector Freedom Project through the staking of an
additional 14 Bureau of Land Management (“BLM”) lode claims surrounding the original six claims,
substantially increasing the Company’s footprint to 380 acres within this highly prospective historical
uranium district. The expanded land package was assembled following detailed historical data compilat ion
and regional geological interpretation, securing additional prospective ground believed to host favorable
uranium mineralization.
“We are excited with the data provided through these surveys”, commented Trevor Perkins, VP Exploration
of Terra. “When combined with the digital dataset we continue to compile for the property, numerous targets
have been identified for follow-up and potential drilling, with the ultimate goal of a 3D model and resource
estimate on the horizon”, continued Mr. Perkins.
Summer Exploration Program & Drill Permitting Underway
Building on the positive survey results, Terra is now advancing a targeted summer exploration program that
will include:
- Ground-truthing of airborne anomalies
- Detailed geological mapping
- Geochemical sampling
- Structural interpretation and target refinement
- Advancement of priority drill targets
Drill permitting is actively underway. Land Survey Advisors of Heber City, Utah, has been engaged to finalize
permitting with the U.S. Bureau of Land Management and the Utah Division of Oil, Gas and Mining.
All exploration activities are being conducted in accordance with applicable regulatory requirements and
industry best practices. Terra remains committed to responsible exploration and environmental stewardship
as it advances the Prospector Freedom Project.
5.2 Disclosure for Restructuring Transactions
Not applicable.
Item 6: Reliance on subsection 7.1(2) or (3) of National Instrument 51 -102
Not applicable.
Item 7: Omitted Information
Not applicable.
Item 8: Executive Officer
For further information, please contact:
Greg Cameron
Chief Executive Officer
Tel: 416-277-6174
Email: [email protected]
Item 9: Date of Report
May 19, 2026