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Boron One Holdings Inc. Signs Letter of Intent LOI to study and define parameters for strategic cooperation: ✓ for the refurbishment of the Pobrdje Colemanite Mine to improve its efficiency, as well as to extend its economic lifespan.

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BORON ONE HOLDINGS INC.

NEWS RELEASE [for immediate release]

Boron One Holdings Inc. Signs Letter of Intent

LOI to study and define parameters for strategic cooperation:

✓ for the refurbishment of the Pobrdje Colemanite Mine to improve its

efficiency, as well as to extend its economic lifespan.

✓ for the inclusion of key regional mining assets that may be repurposed for

use in the development of Boron One’s Piskanja Project.

May 5, 2025

Victoria, BC, Canada [Accesswire]

Boron One Holdings Inc. (“Boron One” or the “Company”) [TSXV: BONE], a company

dedicated to the decarbonization of Planet Earth through the responsible utilization of its

boron assets, is pleased to report that its wholly owned subsidiary, Balkan Gold d.o. o.

(“Balkan”), has entered into a Letter of Intent with Resavica RKU (“Resavica”), a Serbian

publicly owned mining company. The non-binding Letter of Intent ( the “LOI”) outlines

potential cooperation between the parties regarding th e refurbishment of Resavica’s

Pobrdje Colemanite Mine, as well as the ongoing development at Boron One’s Piskanja

Boron Project.

Balkan holds the boron exploration rights to the Piskanja and Jarandol Basin Project areas

and is actively advancing the project towards exploitation . Whereas in the same geological

basin, Resavica owns and operates the Pobrdje Colemanite (boron) Mine, in addition to

holding certain other mining related infrastructure assets that may be strategically beneficial

to Balkan for its future mining activities, planned in this region.

Balkan and Resavica have agreed that certain synergies exist between the Piskanja and

Pobrdje projects, indicating the mutual benefits of strategic cooperation. As a result , the

parties have entered the LOI to study and define an optimized strategy regarding the

improvement of the efficiency of the Pobrdje Mine, as well as the extension of its economic

lifespan. Additionally, the LOI sets the framework for examining the possible repurposing of

certain of Resavica’s existing infrastructure and other strategic mining assets in the region

for use in the development of the Piskanja Project. The parties are actively engaged in

ongoing discussions and the exchange of technical information in order to define the social,

economic and technical parameters required to complete a binding agreement.

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“We are very pleased by this advancement,” said Tim Daniels, President of Boron One. “The

potential for cooperation with Resavica can add significant flexibility to the development

strategies of our boron assets. Additionally, we are proud of a model of private sector-public

sector cooperation that may well prove to be quite beneficial for the various stakeholders

involved in the region, and could be used as a template for other cooperative ventures within

the country.”

Mr. Daniels provides a detailed explanation of the letter of intent, and how the company will

navigate this advancement in an interview viewable here.

###

About the Pobrdje Boron Mine

The Pobrdje Mine is wholly owned by Resavica RKU, located approximately 2.5 km from the

Piskanja deposit within the Jarandol Basin in Southern Serbia , and has been an operating

boron mine for more than a decade . The boron bearing minerals found at Pobrdje include

primarily colemanite with minor howlite. The deposit remains unbounded to the South and

East.

About the Piskanja Boron Project

The Piskanja Project is Boron One Holdings Inc.’s wholly owned boron deposit with a

Measured Mineral Resource of 1.39 million tonnes (averaging 35.59% B2O3), an Indicated

Mineral Resource of 5.48 million tonnes (averaging 34.05% B2O3), and an Inferred Mineral

Resource of 284.7 thousand tonnes (averaging 39.59% B2O3), calculated in accordance with

the Canadian Institute of Mining Definition Standards on Mineral Resources and Reserves

(CIM Standards), as disclosed in the Company’s report titled, “Technical Report and

Preliminary Economic Assessment For The Piskanja Borate Project, Serbia, June 24, 2022”.

The responsible person for the PEA and the Mineral Resource Estimate contained within, is

Prof. Miodrag Banješević PhD. P.Geo, EurGeol, a Qualified Person in accordance with the CIM

Definition Standards on Mineral Resources and Reserves (CIM Standards), and independent

of Boron One Holdings Inc.

On behalf of the Board of Directors,

Tim Daniels

About Boron One Holdings Inc.

Boron One Holdings Inc. is a leading company dedicated to advancing the decarbonization

of our planet through the responsible utilization of its wholly owned boron assets in Serbia.

With a commitment to environmental stewardship and sustainability, Boron O ne aims to

play a crucial role in reducing the world’s carbon footprint and supporting a cleaner, greener

future for us all.

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Headquartered in Victoria, B.C., Canada, Boron One’s shares are traded on the TSX Venture

Exchange under the symbol "BONE". For detailed information please see Boron One's

website at www.boronone.com or the Company's filed documents at

https://www.sedarplus.ca/.

For further information, please contact: Boron’s Public Quotations:

Blake Fallis, General Manager TSX Venture: BONE

Phone: 1-250- 384-1999 or 1-888-289-3746 Berlin: EKV

[email protected] US: SEC 12G3-2(B) #82-4432ERVFF

www.boronone.com OTCBB: ERVFF

Qualified Persons

Nenad Rakic, EurGeol, Piskanja Project Field Manager, a qualified person as defined by NI 43-

101, has reviewed the technical information that forms the basis for this news release, and

has approved the disclosure herein.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term

is defined in the policies of the TSX Venture Exchange) accepts responsibility for the

adequacy or accuracy of this release.

For Boron One Holdings Inc. Investors

Certain statements made in this press release that are not based on historical information

are forward -looking statements that involve substantial known and unknown risks and

uncertainties. This press release contains express or implied forward -looking statements

relating to, among other things, Boron One’s expectations concerning management's plans,

objectives and strategies, including its plans for advancing the Company's Piskanja Project

through to an exploitation license. These statements are neither pr omises nor guarantees

but are subject to a variety of risks and uncertainties, many of which are beyond our control,

and which could cause actual results to differ materially from those contemplated in these

forward-looking statements. Existing and prospec tive investors are cautioned not to place

undue reliance on these forward-looking statements, which speak only as of the date hereof.

Factors that could cause actual results to differ materially from any forward -looking

statement include, but are not limited to, failure to convert estimated mineral resources to

reserves, capital and operating costs varying significantly from estimates, the preliminary

nature of metallurgical test results, delays in obtaining or failures to obtain required

governmental, envi ronmental or other project approvals, political risks, uncertainties

relating to the availability and costs of financing needed in the future, changes in equity

markets, inflation, changes in exchange rates, fluctuations in commodity prices, delays in the

development of projects and the other risks involved in the mineral exploration and

development industry.

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Boron One Holdings Inc. undertakes no obligation to update or revise the information

contained in this press release, whether as a result of new information, future events or

circumstances or otherwise except as expressly required by applicable securities law.

Further information regarding the uncertainties and risks can be found in the disclosure

documents filed by Boron One with the securities regulatory authorities, available at

https://www.sedarplus.ca/. These and other factors made in public disclosures and filings by

the Company should be considered carefully.

Mineral resources are not mineral reserves and do not have demonstrated economic

viability. "Inferred Resources" have a great amount of uncertainty as to their existence, and

economic and legal feasibility. Investors are cautioned not to assume that all or any part of

an inferred mineral resource reported in this news release will ever be upgraded to a higher

category or to reserves. U.S. persons are advised that while mineral resources are recognized

under Canadian regulations, the U.S. Securities and Exch ange Commission does not

recognize them. U.S. persons are also cautioned not to assume that all or any part of an

inferred mineral resource is economically or legally mineable.