Mountain Province Diamonds Extends Maturity on Credit Facility and Sells US$999,999 of Diamond Sale Receivables

1 May 2026

TORONTO and NEW YORKMay 1, 2026 /CNW/ - Mountain Province Diamonds Inc. ("Mountain Province" or the "Company") (TSX: MPVD) (OTC: MPVD) announces today that it is (a) extending the maturity date on its term loan and the principal repayment date under the working capital facility to June 30, 2026; and (b) selling its right, title and interest to US$999,999 of receivables from the sale of its share of diamonds from the Gahcho Kué diamond mine (the "GK Mine") in the Northwest Territories for a purchase price of US$833,000.

Fourth Amending Agreement

The Company has entered into a fourth amending agreement (the "Fourth Amending Agreement") with Dunebridge Worldwide Ltd., as administrative agent, security trustee and lender thereunder ("Dunebridge"), a related party of the Company, extending the maturity date on the US$40 million term loan facility (the "Term Loan") and the date for repayment of the principal amount of the US$33 million working capital facility (the "WCF") from April 30, 2026 to June 30, 2026. The WCF and Term Loan are governed by the amended and restated bridge credit facility agreement dated May 13, 2025, as further amended by amendment no. 1, amendment no. 2 and amendment no. 3 dated July 25, 2025, November 18, 2025, and March 17, 2026, respectively.

Sale of Receivable

The Company also announces today that it has sold US$999,999 of the proceeds from the sale of diamonds from the GK Mine (the "Purchased Receivables"), to which 2435386 Ontario Inc. ("386"), a wholly owned subsidiary of the Company, is entitled under its 49% joint venture interest in such mine, to Mr. Dermot Desmond ("Mr. Desmond") under a purchase and sale agreement between the Company, 386 and Mr. Desmond (the "Purchase and Sale Agreement"). The purchase price for the Purchased Receivables will be paid to the Company immediately, providing the Company with the operating capital necessary to continue operations in the near term while the Company reviews its strategic alternatives.

The rights of Mr. Desmond to payment of Purchased Receivables are subject to the rights of De Beers Canada Inc. ("De Beers") to such Purchased Receivables under the in-kind election notices (each, an "IKE Notice") received to date from De Beers to effectively garnish 386's portion of the diamonds from the Mine under the amended and restated joint venture agreement between the Company, 386 and De Beers dated March 18, 2025 (the "JVA").