Star Diamond Corporation Completes Acquisition Of Rio Tinto’s 75% Interest In Fort à la Corne Joint Venture

Press Release

SASKATOON, Saskatchewan, March 26, 2024 – Star Diamond Corporation (“Star Diamond“) today announced the completion of its previously announced transaction (the “Transaction”) with Rio Tinto Exploration Canada Inc. (“RTEC”) whereby RTEC has transferred to Star Diamond all of RTEC’s 75% interest in the Fort à la Corne diamond project located in central Saskatchewan (the “Project”). Star Diamond now owns 100% of the Project.

In connection with the completion of the Transaction, Star Diamond today issued 108,204,112 common shares to RTEC, such that RTEC and its affiliates now own 19.9% of Star Diamond’s issued and outstanding common shares. RTEC and Star Diamond also today entered into an investor rights agreement (the “Investor Rights Agreement”) whereby, among other things, RTEC has been granted certain pre-emptive rights to maintain its 19.9% ownership interest in Star Diamond in connection with future financings undertaken by Star Diamond, and RTEC has agreed to certain standstill protections provided that RTEC has the right to increase its 19.9% ownership position in the event that Star Diamond receives an acquisition proposal.

The Transaction was completed pursuant to an agreement (the “Agreement”) dated November 28, 2023 previously jointly announced by Star Diamond and RTEC. Copies of the Agreement and the Investor Rights Agreement are available under Star Diamond’s profile on SEDAR+ at www.sedarplus.ca and on Star Diamond’s website at www.stardiamondcorp.com.

About Star Diamond Corporation

Star Diamond is a Canadian-based corporation engaged in the acquisition, exploration and development of mineral properties. Shares of Star Diamond trade on the Toronto Stock Exchange under the trading symbol “DIAM”. Star Diamond’s most significant asset is its 100% interest in the Fort à la Corne property in central Saskatchewan. These kimberlites are located in close proximity to established infrastructure, including paved highways and the electrical power grid, which provide significant advantages for future mine development.

For further information: stardiamondcorp@stardiamondcorp.com or (306) 664-2202

www.stardiamondcorp.com

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