Exhibit 99.1

GOLDEN STAR REPORTS RECORD QUARTERLY GOLD SALES AND

FINANCIAL RESULTS FOR SECOND QUARTER 2009

Denver, Colorado, August 10, 2009: Golden Star Resources Ltd. (NYSE Amex.: GSS; TSX: GSC; GSE: GSR) today announced its unaudited second quarter results. All currency in this news release is expressed in U.S. dollars, unless otherwise noted. The Company will host a live webcast and conference call to discuss its quarterly results on Tuesday, August 11, 2009 at 11:00 a.m. ET. To access the webcast and conference call, go to the home page of the Company’s website, www.gsr.com.

Tom Mair, President and CEO, said, “Golden Star turned in another solid quarter in terms of production, cash operating costs and cash flow. We are on course to meet our guidance of 400,000 ounces of gold at a cash operating cost of approximately $545 per ounce.”

RESULTS AND HIGHLIGHTS

FINANCIAL SUMMARY

SUMMARY OF CONSOLIDATED FINANCIAL RESULTS

BOGOSO/PRESTEA

Gold sales at Bogoso/Prestea in the second quarter were 45,760 ounces, an increase of almost 13% from the first quarter of 2009. Sulfide plant throughput rates improved significantly in the second quarter, as compared to the first quarter, and recovery improved to over 72%.

Cash costs at Bogoso/Prestea during the second quarter of 2009 were $624 per ounce, down 23% from the first quarter of this year. These improvements reflect lower power costs and increased gold sales.

OPERATING RESULTS

WASSA

Wassa sold 53,251 ounces of gold in the second quarter of 2009 which was 70% above the second quarter of 2008 gold sales. Higher gold grades, as a result of the ore delivered from the HBB properties, and higher gold prices offset the lower ore tonnage processed in the second quarter.

Cash costs during the second quarter were $502 per ounce at Wassa with most of the increase over the first quarter due to increased haulage and stripping costs of the HB pits. Year-to-date cash operating costs are $448 per ounce which is in line with guidance.

OPERATING RESULTS

EXPLORATION

Our 2009 exploration budget has been increased from $7.5 million to $9.8 million in order to further expand reserves and resources surrounding our operating mines and to evaluate other areas of the HBB properties. At Wassa, further exploration of the SAK pits has been successful and, as a result, we have increased our resource base by an additional 3.13 million tonnes grading 1.56 g/t gold.

CASH AND CASH FLOW

Our cash and cash equivalents totaled $43.2 million at the end of the second quarter of 2009 compared to $28.1 million at the end of the first quarter. Cash flow from operations totaled $29.3 million in the second quarter of 2009 compared to $11.1 million for the first quarter of 2009.

A revolving credit facility was put in place during the quarter. This revolver initially gave us access to $15 million of credit and was increased to $30 million on July 30, 2009. We have drawn down $5.0 million of this facility which was partially used to purchase the 1.5% Benso royalty.

Liquidity Outlook

Our original capital budget for 2009 has been increased from $38 million to approximately $47 million. We will spend $2 million more on resource drilling with the balance of the increase being spent on sustaining capital at both mining operations.

We anticipate that all of our cash needs for the second half of 2009 will be met by the $43.2 million cash on hand, amounts available on the $30 million revolver facility, cash generated from current operations and amounts available on our equipment financing facility.

LOOKING AHEAD

Our objectives for 2009 include the following:

Our updated guidance for 2009 is as follows:

Effective August 5, 2009, Mr. Michael A. Terrell has resigned from the Board of Directors of Golden Star.

FINANCIAL STATEMENTS The following information is derived from the Company’s unaudited consolidated financial statements contained in our Form 10-Q, which we filed with the SEC today and is available on our website.

CONSOLIDATED BALANCE SHEETS

(Stated in thousands of US dollars except shares issued and outstanding)

(unaudited)

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(Stated in thousands of US dollars except share and per share data)

(unaudited)

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Stated in thousands of US dollars)

(unaudited)

COMPANY PROFILE

Golden Star holds a 90% equity interest in Golden Star (Bogoso/Prestea) Limited and Golden Star (Wassa) Limited, which respectively own the Bogoso/Prestea and Wassa open-pit gold mines through subsidiaries in Ghana. 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 the Guiana Shield of South America. Golden Star has approximately 236 million shares outstanding.

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. Such statements include comments regarding the; permitting and the mining at Prestea South; planned exploration activities and drilling, including exploration at Bogoso/Prestea, Wassa, and the HBB properties; the ability to fund sustaining capital requirements; optimization of throughput and recovery rates at the Bogoso sulfide processing plant; our 2009 production and cash operating cost estimates, capital expenditure estimates, sources of and adequacy of cash to meet capital and other needs in 2009;2009 planned capital budget spending; and our 2009 objectives. Factors that could cause actual results to differ materially include timing of and unexpected events at the Bogoso/Prestea oxide and sulfide processing plant; variations in ore grade, tonnes mined, crushed or milled; variations in relative amounts of refractory, non-refractory and transition ores; delay or failure to receive board or government approvals and permits; the availability and cost of electrical power, timing and availability of external financing on acceptable terms; technical, permitting, mining or processing issues, changes in U.S. and Canadian securities markets, and fluctuations in gold price and costs and general economic conditions. There can be no assurance that future developments affecting the Company will be those anticipated by management. Please refer to the discussion of these and other factors in our Form 10-K for 2008 and the quarterly reports on Form 10-Q filed in 2009. The forecasts contained in this press release constitute management’s current estimates, as of the date of this press release, with respect to the matters covered thereby. We expect that these estimates will change as new information is received and that actual results will vary from these estimates, possibly by material amounts. While we may elect to update these estimates at any time, we do not undertake to update any estimate at any particular time or in response to any particular event. Investors and others should not assume that any forecasts in this press release represent management’s estimate as of any date other than the date of this press release.

Non-GAAP Financial Measures: in this news release, we use the terms “cash operating cost per ounce.” Cash operating cost per ounce is equal to total cash costs less production royalties and production taxes, divided by the number of ounces of gold sold during the period. We use cash operating cost per ounce as a key operating indicator. We monitor this measure monthly, comparing each month’s values to prior period’s values to detect trends that may indicate increases or decreases in operating efficiencies. This measure is also compared against budget to alert management to trends that may cause actual results to deviate from planned operational results. We provide this measure to our investors to allow them to also monitor operational efficiencies of our mines. We calculate this measure for both individual operating units and on a consolidated basis. Cash operating cost per ounce should be considered as Non-GAAP Financial Measures as defined in SEC Regulation S-K Item 10 and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with GAAP. There are material limitations associated with the use of such non-GAAP measures. Since this measure does not incorporate revenues, changes in working capital and non-operating cash costs, it is not necessarily indicative of operating profit or cash flow from operations as determined under GAAP. Changes in numerous factors including, but not limited to, mining rates, milling rates, gold grade, gold recovery, and the costs of labor, consumables and mine site general and administrative activities can cause these measures to increase or decrease. We believe that these measures are the same or similar to the measures of other gold mining companies, but may not be comparable to similarly titled measures in every instance.

For further information, please contact:

GOLDEN STAR RESOURCES LTD.        +1-800-553-8436

Bruce Higson-Smith, Vice President Corporate Development

Anne Hite, Investor Relations Manager