Sept 20 (Reuters) - Golden Star Resources Ltd GSC.TO :
* GOLDEN STAR PROVIDES AN UPDATE ON OPERATIONS AT THE PRESTEA COMPLEX AND FULL YEAR 2018 GUIDANCE
* GOLDEN STAR RESOURCES LTD - FY 2018 CONSOLIDATED GOLD PRODUCTION IS EXPECTED TO BE 225,000-235,000 OUNCES
* GOLDEN STAR RESOURCES LTD - CONDUCTED A REVIEW OF OPERATIONS AND CONSEQUENTLY HAS FORMULATED AN IMPROVEMENT PLAN FOR PRESTEA
* GOLDEN STAR RESOURCES LTD - FY 2018 CONSOLIDATED ALL-IN SUSTAINING COST PER OUNCE GUIDANCE IS EXPECTED TO BE $1,050 TO $1,100
* GOLDEN STAR RESOURCES LTD - FY 2018 PRODUCTION FROM PRESTEA IS STILL EXPECTED TO BE IMPACTED FROM HANDOVER TO IN-HOUSE TRAINING
* GOLDEN STAR RESOURCES - FY 2018 CONSOLIDATED CASH OPERATING COST PER OUNCE IS EXPECTED TO BE $790 TO $830
* GOLDEN STAR RESOURCES LTD - IMPLEMENTING FURTHER CHANGES TO ITS ALIMAK MINING PROGRAM
* GOLDEN STAR RESOURCES LTD - WILL BEGIN PROCESS OF RIGHTSIZING PRESTEA WORKFORCE AND STREAMLINING ON-SITE MANAGEMENT
* GOLDEN STAR RESOURCES LTD - WILL HAVE SUFFICIENT FUNDS TO IMPLEMENT ACTIONS AT PRESTEA, ENSURE OPERATION HAS LEANER COST STRUCTURE GOING FORWARD
* GOLDEN STAR RESOURCES LTD - EXPECTS ANNUAL CASH OPERATING COSTS FOR PRESTEA TO BE REDUCED BY 31%
* GOLDEN STAR RESOURCES LTD - UPDATED FY 2018 GOLD PRODUCTION GUIDANCE AS A RESULT OF SLOWER THAN EXPECTED RAMP UP AT PRESTEA UNDERGROUND