Star Copper Corporation — Proxy Solicitation & Information Statement 2020

Nov 19, 2020

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Date: November 19, 2020

510 Burrard St, 3rd Floor Vancouver BC, V6C 3B9 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: PROPHECY POTASH CORP.

Dear Sir/Madam:

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

Meeting Type : Special Meeting Record Date for Notice of Meeting : November 16, 2020 (AMENDED) Record Date for Voting (if applicable) : November 16, 2020 (AMENDED) Beneficial Ownership Determination Date : November 16, 2020 (AMENDED) Meeting Date : December 15, 2020 Meeting Location (if available) : Vancouver, BC Issuer sending proxy related materials directly to NOBO: Yes Issuer paying for delivery to OBO: No

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders NAA for Registered Holders

Voting Security Details:

Description CUSIP Number ISIN COMMON CLASS 74348W105 CA74348W1059

Sincerely,

Computershare

Agent for PROPHECY POTASH CORP.