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YRB.TO ·

Yorbeau and Iamgold Sign Letter of Intent FOR the Rouyn Property

Property Options & Staking

YORBEAU RESOURCES INC.

110 Place Crémazie, bureau 430, Montréal, QC, H2P 1B9

www.yorbeauresources.com

PRESS RELEASE

YORBEAU AND IAMGOLD SIGN LETTER OF INTENT

FOR THE ROUYN PROPERTY

Montreal, October 25, 2018 - Yorbeau Resources Inc. (TSX: YRB.A) (the “Company” or “Yorbeau”) is

pleased to announce that it has signed a non-binding letter of intent (“LOI”) with IAMGOLD Corporation

(“IAMGOLD”) with respect to an option to acquire a 100% interest in Yorbeau’s Rouyn property

(“Property”) in Quebec, Canada.

The LOI outlines what would be mutually acceptable principal terms for a definitive option agreement

under which, subject to certain conditions, IAMGOLD would make certain cash payments and incur

exploration expenditures towards an option to purchase a 100% interest in the Property. In order to earn

the purchase option, IAMGOLD must:

(i) make an initial cash payment to Yorbeau on the effective date of the option agreement (the

“Effective Date”) of an amount of C$1 million;

(ii) fund and incur C$9 million of exploration expenditures in a period of up to forty- eight (48)

calendar months following the Effective Date (the “Expenditure Period”), including

minimum exploration expenditures in each 12-month period of the Expenditure Period and at

least 20,000 meters of diamond drilling within a twenty-four (24) month period following the

later of the Effective Date or the date all requiste governmental approvals or consents for the

drilling program shall have been obtained;

(iii) make interim cash payments to Yorbeau during the Expenditure Period of an aggregate

amount of C$3 million;

(iv) complete a resource estimate for the Property in accordance with IAMGOLD’s standard

estimation and reporting practices subject to detailed technical parameters to be agreed

between IAMGOLD and Yorbeau in the definitive option agreement; and

(v) make a final cash payment to Yorbeau, in three instalments over up to a two -year period

following the Expenditure Period, in an aggregate amount equal to the lesser of (a) an amount

calculated by multiplying the total number of ounces of gold identified in the resource

estimate by C$15.00 and (b) C$30 million.

In addition to the final cash payment, Yorbeau will retain a 2% net smelter royalty on minerals produced

from the Property. IAMGOLD will be the operator and project manager of the P roperty during the option

period with Yorbeau to have representation on a technical committee which will oversee the work

program.

The letter of intent is non -binding and subject to conditions, including completion of due diligence to

IAMGOLD’s satisfaction, the negotiation and finalization of a satisfactory definitive agreement and the

approval of the sharehol ders of Yorbeau which will be sought at a special meeting to be convened for

such purposes.

Gérald Riverin, President of Yorbeau, stated: “Yorbeau is highly enthusiastic to partner with IAMGOLD,

a major gold producer with ongoing mining operations in the vicinity of the Rouyn property. Signing the

letter of intent marks a significant milestone for Yorbeau and the Rouyn project. We look forward to

YORBEAU RESOURCES INC.

110 Place Crémazie, bureau 430, Montréal, QC, H2P 1B9

www.yorbeauresources.com

collaborating with IAMGOLD to finalize the definitive option agreement and advance the project with the

intention of realizing value for all stakeholders.”

About Yorbeau Resources Inc.

The Rouyn Property, wholly- owned by the Company, contains four known gold deposits in the 6 -km-

long Augmitto-Astoria corridor situated on the western portion of the property. Two of the four deposits,

Astoria and Augmitto, have substantial underground infrastructure and have been the subject of

Regulation 43-101 technical reports that include resource estimates. In 2015, the Company expanded its

exploration property portfolio by acquiring strategic base metal properties in prospective areas of the

Abitibi Belt of Quebec and Ontario that feature an infrastructure favourable for m ining development. The

newly acquired base metal properties include the Scott Project, which bears important mineral resources

(see the press release dated March 30, 2017) and on which a positive Preliminary Economic Assessment

was recently completed.

For additional information on the Company, consult its website at www.yorbeauresources.com.

For further information, please contact:

Gérald Riverin, PhD, P. Geo G. Bodnar Jr.

President, Yorbeau Resources Inc. Vice-President,

Yorbeau Resources Inc. Yorbeau Resources Inc.

[email protected] [email protected]

Tel: 819-279-1336 Tel: 514-384-2202

Toll free in North America: 1-855-384-2202

Forward-looking statements: Except for statement of historical fact, all statements in this news release,

without limitation, statements relating to the proposed transaction with IAMGOLD, proceeds to be

received by Yorbeau from the transaction, the terms and conditions of the transaction and the impact of

the transaction on the Company, are forward- looking statements which involve risks and uncertainties.

There can be no assurance that such statements will prove to be accurate; actual results and future events

could differ materially from those anticipated in such statements. Yo rbeau disclaims any obligation to

update such forward-looking statements, other than as required by applicable securities laws.