Golden Star Resources Enters Into Debenture Purchase and Exchange Agreement

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 that it has entered into certain definitive agreements to purchase an aggregate of $74.5 million of the principal outstanding under its 4.00% Convertible Senior Unsecured Debentures due November 30, 2012 (the "Original Debentures"), by way of privately negotiated transactions with certain holders of Original Debentures (the "Holders"). After purchasing and cancelling $74.5 million of Original Debentures, an aggregate of $50.5 million principal amount of Original Debentures will remain outstanding.

As consideration for purchasing $74.5 million of Original Debentures, the Company will issue an aggregate of approximately $77.5 million principal amount of 5.00% Convertible Senior Unsecured Debentures due June 1, 2017 (the "New Debentures"). The Company will issue the New Debentures in transactions exempt from the registration requirements of the U.S. Securities Act of 1933, as amended (the "Securities Act").

Interest on the New Debentures will be payable semi-annually in arrears on June 1 and December 1 of each year, beginning December 1, 2012, and continuing until maturity. Each New Debenture will 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), or approximately 25% above the closing price of the Company's common shares on the NYSE MKT (formerly NYSE Amex) on May 17, 2012, the last full trading day prior to entry into the agreement, subject to adjustment in certain circumstances. The New Debentures will 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 will 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 will guarantee the New Debentures, and the New Debentures will not limit the amount of debt that the Company or its subsidiaries may incur.

The closing of the transaction is expected to occur on or about May 31, 2012, subject to receipt of regulatory approvals and other customary closing conditions, and should provide the Company with additional financial flexibility for accomplishing its near- and mid-term growth objectives.

All references to "$" in this press release are to United States dollars.

This announcement does not constitute an offer to sell, nor is it a solicitation of an offer to buy, securities. The New Debentures, and the common shares issuable upon conversion of the New Debentures, will 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

Please note that you are now entering a website directly or indirectly maintained by a third party (the "External Site") and that you do so at your own risk.

Neither Golden Star Resources Ltd. nor its affiliates, subsidiaries, officers, directors or agents (collectively, “Golden Star” or the “Company”) have any control over (a) the External Site or any linked websites accessible through any External Site, or (b) any data or other content contained, or accessible, therein or in or through any such linked websites. The link to the External Site is provided for convenience purposes only. The information and other content on the External Site is not meant to modify, qualify, supplement or amend information disclosed by or on behalf of the Company under corporate, securities or other legislation in any jurisdiction, and should not be used to make investment decisions involving the Company’s securities.

By clicking “Accept” below you acknowledge and agree that neither Golden Star nor the third party provider of the External Site, Virtua Research, Inc. (“Virtua”), is responsible, or accepts or assumes any responsibility or liability whatsoever for, the content, the data contained in or accessible on or through, or the technical operation of the External Site. Golden Star and Virtua are not liable to you for, and take no responsibility for, third party pricing data provided for informational purposes and certain ratio results formulated from the provided third party pricing data. Further, by entering the External Site, you also acknowledge and agree that you completely and irrevocably forever waive, and release Golden Star from, any and all rights and claims against Golden Star and Virtua and further acknowledge and agree that in no event shall Golden Star or Virtua, its officers, employees, directors and agents be liable for any (i) direct or indirect, consequential, incidental, special, compensatory, punitive or other damages, (ii) damages for loss of income, loss of business profits, business interruption, loss of data or business information, loss of or damage to property, (iii) claims of third parties, or (iv) other pecuniary loss, arising out of or related to this disclaimer or the External Site or any linked websites.

By entering the External Site, you further acknowledge and agree that the disclaimer of warranties and limitations of liability set out in this disclaimer shall apply regardless of the causes, circumstances or form of action giving rise to the loss, damage, claim or liability, even if such loss, damage, claim or liability is based upon breach of contract (including, without limitation, a claim of fundamental breach or breach of a fundamental term), tort (including, without limitation, negligence), strict liability or any other legal or equitable theory, and even if Golden Star and Virtua are advised of the possibility of the loss, damage, claim or liability. The waiver and release specifically includes, without limitation, any and all rights and claims pertaining to the processing of personal data, including but not limited to any rights under any applicable data protection statute(s).

If in any jurisdiction, any part of this disclaimer is determined to be unenforceable by a court of competent jurisdiction, such part of this disclaimer shall be restricted or eliminated to the minimum extent necessary to comply with such determination and the remaining disclaimer shall otherwise remain in full force and effect.

Please note the information presented is given as at the date and the time of its original release. Changes in such historical information may occur due to adjustments in accounting and reporting standards & procedures.

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.

© Golden Star | All Rights Reserved