La Mancha Holding S.à r.l. (“La Mancha”), a Luxembourg-incorporated private gold investment company, is pleased to announce the acquisition of an aggregate of 2,416,356 common shares (the “Shares”) of Golden Star Resources Ltd. (“Golden Star”). The share purchases were made through open market purchases on the New York Stock Exchange and other U.S. marketplaces at prices ranging from US$2.8002 (C$3.7523) to US$3.3928 (C$4.5464) per share (USD-CAD conversions based on the Bank of Canada exchange rate on February 28, 2020). The share purchases were made in reliance on the normal course purchase exemption from the take-over bid rules under applicable Canadian securities law and in connection with Golden Star’s previously announced consent to La Mancha acquiring up to an additional 5% of the outstanding common shares of Golden Star through ordinary market or block trade purchases.