TSE: GSC NEWS RELEASE NASD-OTC BB: GSRSF

GOLDEN STAR AND BHP ENTER INTO JOINT VENTURE ON THE CUYUNI PROPERTY IN (all currency amounts in United States dollars unless otherwise stated)

Denver, Colorado – April 25, 2002

Golden Star Resources Ltd. (“Golden Star” or the “Company”) is pleased to announce that Golden Star and BHP Minerals International Exploration Inc (“BHP”) have entered into a joint venture to acquire two prospecting licenses in the Cuyuni district in Guyana, which is located approximately 140 kilometers from the country’s capital, Georgetown (the “Cuyuni Property”). BHP is a member company of BHP Billiton Limited. BHP will have an 80% managing interest in the joint venture and will fund 100% of all project expenditures up to the completion of a bankable feasibility study. Golden Star will have a 20% interest in the joint venture and will be free carried until the completion of the bankable feasibility study.

The Cuyuni Property, which covers an area of 104 square kilometers, is prospective for copper and gold and is being acquired from Barama Company Limited (“Barama”). Under the agreement with Barama, BHP will pay to Barama (i) $65,000 upon the signing of the agreement, (ii) $10,000 upon the transfer of the prospecting licenses for the Cuyuni Property into the name of BHP, (iii) $25,000 per year on the anniversary of the signing of the agreement as an advance royalty payment, (iv) $250,000 for each mine site developed by BHP as a further advance royalty payment, (v) 1.0% of the capitalized exploration and development cost of each new mine site as a cash payment upon commencement of commercial production, and (vi) a net profits royalty of 5%. The advance royalty payments are deductible from the net profits royalty. In addition, BHP may spend up to $3.5 million on direct exploration activities within the first five years following the issue of the prospecting licenses.

Peter Bradford, Golden Star’s President and CEO, stated: “Golden Star has had a long association with the Guiana Shield and has developed a tremendous knowledge base, which we are keen to capitalize on. We are therefore pleased to have renewed our association with BHP and to have the opportunity to participate in the exploration of the Cuyuni Property.”

Golden Star holds a 90% equity interest in the Bogoso/Prestea open-pit gold mine in , a 45% interest in, and management of, the Prestea underground mine in Ghana, a 30% equity

Golden Star Resources Ltd. News Release 02-04 Page 1 of 2 interest in the Omai gold mine in Guyana (which is being sold to Cambior), a 50% interest in the Gross Rosebel gold project in Suriname (also subject to the sale to Cambior), and is in the process of acquiring the Wassa gold project in Ghana. In addition, we have other gold exploration interests in the Guiana Shield in South America and in West Africa. Golden Star currently has approximately 64 million shares outstanding and is listed on the Stock Exchange under the symbol “GSC” and trades on the OTC Bulletin Board under the symbol “GSRSF”.

The statements contained in this press release are both historical and forward-looking in nature. The forward-looking statements involve risks and uncertainties including those relating to exploration, the establishment of reserves, the recovery of any reserves, future gold production, future costs of production, future permitting and future operations. Please refer to a discussion of these and other risk factors in Golden Star’s Form 10-K and other Securities and Exchange Commission filings.

For further information, please contact: GOLDEN STAR RESOURCES LTD. +1 800 553 8436 Peter Bradford President and CEO +1 303 894 4613 Allan Marter Chief Financial Officer +1 303 894 4631

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