Golden Star Announces Extension of Scheduled Maintenance at Bogoso Mine Refractory Processing Plant

Golden Star Announces Extension of Scheduled Maintenance at Bogoso Mine 
Refractory Processing Plant 
TORONTO -- (Marketwire) -- 02/19/13 --  Golden Star Resources Ltd.
(NYSE MKT: GSS) (TSX: GSC) (GHANA: GSR) ("Golden Star" or the
"Company") today advises that the planned maintenance for the
semi-autogenous ("SAG") mill in the Refractory Plant at Bogoso has
been extended from 4 days to approximately 8 days. High temperatures
on an inboard bearing with the SAG mill motor were identified after
restart, and this required immediate shutdown to revisit the driving
components of the mill. Although the SAG mill overrun itself is not a
major concern, the BIOX(R) bacteria activity requires preservation
and therefore a gradual ore feed once the SAG mill restarts. The
Company will update the market accordingly and advises that the
bearings and other equipment and resources required are available and
on site.  
This maintenance extension will delay the production schedule by an
estimated 4,000 ounces for the first quarter of 2013. However,
current annual guidance of 320,000 to 350,000 ounces remains
unchanged.  
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/HBB open-pit gold mines
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 Brazil in South America. Golden Star has approximately
259 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 under Canadian securities laws. Investors are
cautioned that forward-looking statements are inherently uncertain
and involve risks and uncertainties that could cause actual facts to
differ materially. Forward-looking statements in the news release
include statements regarding the timing for the restart of the SAG
mill, the impact of the maintenance extension on annual production
guidance and the expectations for production in the second quarter.
F
actors that could cause actual results to differ materially include
timing of and unexpected events at the SAG mill; variations in ore
grade, tonnes mined, crushed or milled; and variations in relative
amounts of refractory, non-refractory and transition ores. 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 2011 and subsequent
Forms 10-Q for 2012 and other filings of the Company made with the
United States and the applicable Canadian securities regulatory
authorities. 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. While we may
elect to update these estimates at any time, we do not undertake any
estimate at any particular time or in response to any particular
event. 
For Further Information, Please Contact: 
GOLDEN STAR RESOURCES LTD. (www.gsr.com)
Bruce Higson-Smith
Senior Vice President Corporate Strategy
1-800-553-8436 
INVESTOR RELATIONS
Jay Pfeiffer
Pfeiffer High Investor Relations, Inc. 
303-393-7044 
Belinda Labatte
The Capital Lab, Inc.
647-427-0208