NextSource Materials Inc. — Regulatory Filings 2020

Oct 20, 2020

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TSX TRUST COMPANY

VIA ELECTRONIC TRANSMISSION

October 20, 2020

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE: NEXTSOURCE MATERIALS INC. Confirmation of Notice of Record and Meeting Dates

We are pleased to confirm that Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities.

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----- Start of picture text ----- We advise the following with respect to the upcoming Annual and Special Meeting of Security Holders for thesubject issuer:1 ISIN: CA65343M1005CUSIP: 65343M1002 Date Fixed for the Meeting: November 24, 20203 Record Date for Notice: October 14, 20204 Record Date for Voting: October 14, 20205 Beneficial Ownership Determination Date: October 14, 20206 Classes or Series of Securities that entitle COMMONthe holder to receive Notice of the Meeting:7 Classes or Series of Securities that entitle COMMONthe holder to vote at the meeting:8 Business to be conducted at the meeting: Annual and Special9 Notice-and-Access:Registered Shareholders: YESBeneficial Holders: YESStratification Level: Not Applicable10 Reporting issuer is sending proxy-related materialsdirectly to Non-Objecting Beneficial Owners: YES11 Issuer paying for delivery to Objecting Beneficial Owners: YESCANCELLED----- End of picture text -----

Yours truly, TSX Trust Company

• " Oliver Keung " Relationship Manager oliver.keung@tmx.com

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