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Lucara Announces That Euronext Oslo Børs Has Admitted Its US$350.0 Million Senior Secured Bonds to Registration ON Euronext ABM

Corporate Updates

Tel: +1 604 674 0272 Suite 2800, Four Bentall Centre lucaradiamond.com

[email protected] 1055 Dunsmuir Street, PO Box 49225

Vancouver, BC, V7X 1L2

September 2, 2026

NEWS RELEASE

LUCARA ANNOUNCES THAT EURONEXT OSLO BØRS HAS ADMITTED ITS US$350.0 MILLION SENIOR

SECURED BONDS TO REGISTRATION ON EURONEXT ABM

VANCOUVER, B.C., September 2, 2026 /CNW/ (LUC – TSX, LUC – BSE, LUC – Nasdaq FNGM)

Lucara Diamond Corp. ("Lucara" or the "Company") announces that Euronext Oslo Børs has admitted the US$350.0

million senior secured bonds (the “Bonds”) issued by its wholly owned subsidiary, Lucara Capital S.à .r.l. (“Lucara

Capital”), to trading on Euronext ABM, effective September 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 percent per

annum, with interest payable in quarterly instalments. The Bonds are listed under ISIN NO0013738237. The admission

document is available on Lucara’s website: https://lucaradiamond.com/investors/bond-information/.

As previously announced, t he net proceeds from the bond issuance have been applied to fully repay the Company's

previous US$220.0 million senior secured project finance facilities with its previous lending syndicate. The remaining

proceeds will be used to fund 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" or "Project") (see March 30,

2026 news release).

On behalf of the Board,

William Lamb

President and Chief Executive Officer

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For further information, please contact:

Vancouver Hannah Reynish, Investor Relations & Communications

+1 604 674 0272| [email protected]

Sweden Robert Eriksson, Investor Relations & Public Relations

+46 701 112615 | [email protected]

ABOUT LUCARA

Lucara is a leading independent producer of large exceptional quality Type IIa diamonds from its 100% 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

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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 s cheduled 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 committe d to upholding high standards while striving to deliver long -term economic

benefits to Botswana and the communities in which the Company operates.

The information in this release is subject to the disclosure requirements of Lucara pursuant to the EU Market Abuse

Regulation. The Company's certified adviser on the Nasdaq First North Growth Market is Bergs Securities AB,

[email protected], +46 739 49 62 50. This information was submitted for publication, through the agency of the

contact person set out above, on September 2, 2026, at 4:00 p.m. Pacific Time.