Mr. William Lamb reports

LUCARA ANNOUNCES THAT EURONEXT OSLO BORS HAS ADMITTED ITS US$350.0 MILLION SENIOR SECURED BONDS TO REGISTRATION ON EURONEXT ABM

Euronext Oslo Bors has admitted the $350.0-million (U.S.) of senior secured bonds issued by Lucara Diamond Corp.'s wholly owned subsidiary, Lucara Capital S.a.r.l., to trading on Euronext ABM, effective Sept. 3, 2026.

The bonds were issued on March 30, 2026, have a tenor of five years and carry a fixed coupon rate of 12.5 per cent per annum, with interest payable in quarterly instalments. The bonds are listed under ISIN NO0013738237. The admission document is available on Lucara's website.

As previously announced, the net proceeds from the bond issuance have been applied to fully repay the company's previous $220.0-million (U.S.) of senior secured project finance facilities with its previous lending syndicate. The remaining proceeds will be used to finance a dedicated debt service retention account covering two years of interest on the bonds and to support the continued development of the Karowe underground project (the UGP) (see March 30, 2026, news release).

About Lucara Diamond Corp.

Lucara is a leading independent producer of large exceptional quality Type IIa diamonds from its 100-per-cent-owned Karowe diamond mine in Botswana. Karowe is the only diamond mine in the world to have recovered ten diamonds in excess of 1,000 carats in weight. The Karowe mine has been in production since 2012 and is the focus of the company's operations and development activities. Karowe is transitioning from open-pit to underground mining with the development of the UGP. The UGP is designed to access the highest-value portion of the Karowe orebody. Underground development ore from the UGP is scheduled to begin replacing unprocessed run-of-mine stockpiles in 2027, with full-scale underground production planned for the first half of 2028.

Lucara has an experienced board and management team with extensive diamond development and operations expertise. Lucara and its subsidiaries operate transparently and in accordance with international best practices in the areas of sustainability, health and safety, environment, and community relations. Lucara is certified by the Responsible Jewellery Council, complies with the Kimberley Process, and has adopted the IFC Performance Standards and the World Bank Group's Environmental, Health and Safety Guidelines for Mining. The development of the UGP adheres to the Equator Principles. Lucara is committed to upholding high standards while striving to deliver long-term economic benefits to Botswana and the communities in which the company operates.

We seek Safe Harbor.