Star Diamond Corporation — Proxy Solicitation & Information Statement 2021

Mar 5, 2021

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Date: March 5, 2021

324 - 8th Avenue SW, Suite 800 Calgary AB, T2P 2Z2 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: STAR DIAMOND CORPORATION

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type: Annual General and Special Meeting Record Date for Notice of Meeting: March 30, 2021 Record Date for Voting (if applicable): March 30, 2021 Beneficial Ownership Determination Date: March 30, 2021 Meeting Date: May 13, 2021 Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders Yes Beneficial Holders Stratification Criteria: Not Applicable NAA for Registered Holders Yes Registered Holders Stratification Criteria: Not Applicable

Voting Security Details:

Description CUSIP Number ISIN COMMON SHARES 85511Y108 CA85511Y1088 COMMON DATED LEG EXP MAY 22/21 85511Y207 CA85511Y2078

Sincerely,

Computershare

Agent for STAR DIAMOND CORPORATION