Golden Star Resources Contemplates Exchanging Its Existing Convertible Debentures for New Convertible Debentures

05.17.2012

DENVER, CO, May 17, 2012 (MARKETWIRE via COMTEX) --Golden Star Resources Ltd. (NYSE MKT: GSS) (NYSE Amex: GSS) (TSX: GSC) (GHANA: GSR) ("Golden Star" or the "Company") today announced its intention to exchange certain of its 4.00% Convertible Senior Unsecured Debentures due November 30, 2012 (the "Original Debentures") for new Convertible Senior Unsecured Debentures (the "New Debentures") via privately negotiated exchange agreements with certain holders of the Original Debentures.

The New Debentures would carry a 5.00% coupon and would mature on June 1, 2017. Each New Debenture would be, subject to certain limitations, convertible into common shares at a conversion rate of 606.0606 common shares per $1,000 principal amount of New Debentures (equal to an initial conversion price of $1.65 per share). The New Debentures would not be redeemable at the Company's option, except in the event of certain change in control transactions where 90% or more of the outstanding New Debentures have accepted a mandatory offer to purchase by the Company.

The New Debentures would be direct senior unsecured indebtedness of the Company, ranking equally and ratably with all other senior unsecured indebtedness and senior to all subordinated indebtedness. None of the Company's subsidiaries would guarantee the New Debentures, and the New Debentures would not limit the amount of debt that the Company or its subsidiaries may incur. The Company intends to issue the New Debentures in transactions exempt from the registration requirements of the U.S. Securities Act of 1933, as amended (the "Securities Act").

This announcement does not constitute an offer to sell, nor is it a solicitation of an offer to buy, securities. If The Company is able to enter into the privately negotiated exchanges, the New Debentures, and the common shares issuable upon conversion of the New Debentures, would not be registered under the Securities Act or the securities laws of any other jurisdiction, and may not be offered or sold in the United States without registration under, or an applicable exemption from, the registration requirements of the Securities Act.

COMPANY PROFILE

Golden Star Resources holds the largest land package in one of the world's largest and most prolific gold producing regions. The Company holds a 90% equity interest in Golden Star (Bogoso/Prestea) Limited and Golden Star (Wassa) Limited, which respectively own the Bogoso/Prestea and Wassa/HBB open-pit gold mines in Ghana, West Africa. In addition, Golden Star has an 81% interest in the currently inactive Prestea Underground mine in Ghana, as well as gold exploration interests elsewhere in Ghana, in other parts of West Africa and in Brazil in South America. Golden Star has approximately 259 million shares outstanding. Additional information is available at www.gsr.com.

Statements Regarding Forward-Looking Information: Some statements contained in this news release are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and other applicable securities laws. Investors are cautioned that forward-looking statements are inherently uncertain and involve risks and uncertainties that could cause actual results to differ materially, including comments regarding the expectation that the purchase and exchange will be completed consistent with the terms outlined above, the anticipated closing date of the transaction, and other statements that express management's expectations or estimates of future developments, circumstances or results. Actual results may differ materially from those presented. Factors that could cause results to differ materially include fluctuations in gold price, disruptions in U.S. and Canadian securities markets, and other factors that may cause actual results, performance or achievements to be materially different from those expressed or implied. Golden Star assumes no obligation to update this information. Please refer to the discussion of risk factors in our Form 10-K for the year ended December 31, 2011.

For further information, please contact:

GOLDEN STAR RESOURCES LTD.
+1-800-553-8436
Bruce Higson-Smith
Senior Vice President Finance and Corporate Development

INVESTOR RELATIONS
Jay Pfeiffer
Pfeiffer High Investor Relations, Inc.
303-393-7044


SOURCE: Golden Star Resources

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Non-GAAP Information

Golden Star also uses certain non-International Financial Reporting Standards (“IFRS”) financial measures as defined in applicable Canadian and United States securities laws ("non-GAAP measures"), including the terms “cash operating cost per ounce”, “all-in sustaining costs”, “cash generated from operations before working capital changes”, “adjusted net (loss)/income attributable to Golden Star shareholders and “adjusted net (loss)/income per share attributable to Golden Star shareholders”. Golden Star believes that these measures are similar to the measures of other gold mining companies, but may not be comparable to similarly titled measures in every instance. In addition, changes in numerous factors including, but not limited to, Golden Star’s share price, risk free interest rates, gold prices, mining rates, milling rates, ore grade, gold recovery, costs of labor, consumables and mine site general and administrative activities can cause these measures to increase or decrease.

Golden Star believes these measures are useful non-GAAP operating measures and supplement the IFRS disclosures made by the Company. These non-GAAP measures are not representative of all of Golden Star's cash expenditures and there are material limitations associated with the use of such non-GAAP measures. Since these non-GAAP measures do not incorporate all non-cash expense and income items, changes in working capital and non-operating cash costs, they are not necessarily indicative of operating profit or cash flow from operations as determined under IFRS.

The non-GAAP information is not prepared in accordance with IFRS and may not be comparable to non-GAAP information used by other companies. The non-GAAP information should not be viewed in isolation or as a substitute for, or superior to, other data prepared in accordance with IFRS. For an explanation of the Non-GAAP financial measures used by the Company, please refer to the heading “Non-GAAP Financial Measures” in the Company’s Management Discussion and Analysis of Financial Condition and Results of Operations for the Three Months ended March 31, 2014 and the Company’s Management Discussion and Analysis of Financial Condition and Results of Operations for the Year Ended December 31, 2013, available at www.sedar.com.

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