MATERIAL CHANGE REPORT

(FORM 51-102F3)

Item 1: REPORTING ISSUERS(FORM 51-102F3)

Mosaic Minerals Corp. (the “Mosaic”)
4908 Pine Crescent
Vancouver, BC V6M 3P6

Item 2: DATE OF MATERIAL CHANGE

April 76, 2021

Item 3: PRESS RELEASE

Date: April 27, 2021

Dissemination: The news release dated April 27, 2021 was disseminated through The Newswire and is
available on the SEDAR website (www.sedar.com).

Item 4: SUMMARY OF MATERIAL CHANGE

Resignation of Director; Grant of Stock Options

Item 5.1: FULL DESCRIPTION OF MATERIAL CHANGE

Montreal, Quebec – April 27, 2021 – M. Maurice Giroux, President and CEO of Mosaic Minerals Corp.
(“Mosaic” or the “Company”) (CSE: MOC) announces:

Board of Directors

Mosaic announces the resignation of Tim Johnson as a member of the Board of Directors. We fully
appreciate that the increasing demands of Mr. Johnson’s full-time position as President and CEO of
Granite Creek Copper Inc. no longer allow him adequate time to continue his Mosaic directorship. We
thank Mr. Johnson for all his assistance and for his contributions to Mosaic’s development from
incorporation through to CSE listing and up to the present time. We wish him the best of luck in his other
ongoing project.

Grant of Stock Options

Mosaic has granted 1,000,000 incentive stock options to directors and consultants. The options are
exercisable at a price of $0.10 per share for a term of five years. The options are granted pursuant to the
Company’s incentive stock option plan.

About Mosaic Minerals Corporation

Mosaic Minerals Corp., founded in 2018, is a Canadian mineral exploration company focused on the
acquisition and the development of mining property with potential principally within the Quebec mining
camps.

On Behalf of the Board

Maurice Giroux BSc
President & CEO
Contact: Maurice Giroux at 1-514-952-5709
[email protected]
www.mosaicminerals.ca

ITEM 5.2 DISCLOSURE FOR RESTRUCTURING TRANSACTIONS

Not applicable.

ITEM 6. RELIANCE ON SUBSECTION 7.1(2) OF NI 51-102

Not applicable.

ITEM 7. OMITTED INFORMATION

No information has been omitted on the basis that it is confidential information.

ITEM 8. EXECUTIVE OFFICER

Contact: Maurice Giroux, President and Chief Executive Officer
Telephone: 514-952-5709

ITEM 9. DATE OF REPORT

April 27, 2021