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Golden Star Reports Drilling Results From Wassa Underground Gold Mine

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Golden Star Reports Drilling Results From Wassa Underground Gold Mine

 

 

 

 

 

Golden Star Resources Ltd. (NYSE American: GSS) (TSX: GSC) (GSE: GSR) is pleased to report further step out and infill drilling results from its Wassa Underground Gold Mine in Ghana, demonstrating the extension and robustness of the deposit.

 

HIGHLIGHTS1

 

  • Positive assay results received from five new infill and step-out diamond drill (“DD”) holes at Wassa Underground
  • Step out drilling confirms gold mineralization remains open at least 200 metres (“m”) to the South of existing Inferred Mineral Resources
  • Infill drilling confirms continuity of width and grade of mineralized areas
  • New foot wall zone of gold mineralization has been identified
  • Significant intercepts include:
    • 10.4 m grading 11.9 g/t (“grams per tonne”) of gold (“Au”) from 774.5 m, including 6.4 m grading 16.2 g/t Au in hole BS18DD393M
    • 16.2 m grading 6.7 g/t Au from 944.0 m in hole BS18DD392D1 (drilled depth from wedge)
    • 15.6 m grading 4.0 g/t Au from 256.7 m including 5.2 m grading 6.7 g/t Au in hole BS18DD391D2 (drilled depths from wedge)
  • These results are expected to further increase Wassa’s Inferred Mineral Resources and upgrade a portion of them to Indicated Mineral Resources
  • Conceptual mining studies are advancing in conjunction with the new drilling in preparation for a Preliminary Economic Assessment in 2019
Notes  
1. All widths quoted in this press release are estimated true widths

 

 

Sam Coetzer, President and Chief Executive Officer of Golden Star, commented:

 

“I am encouraged by the latest positive results from the Wassa Underground drilling program.  Our objective is to ‘fill the mill’ through defining additional Mineral Resources and utilizing the Wassa processing plant’s excess capacity and these latest results suggest that we are on track to achieve this goal.  The step out drilling results continue to confirm the extension of the Wassa Underground deposit to the south and the deposit remains open down plunge, which suggests further exploration upside potential. The infill drilling results also confirm the previously recorded grades and widths of the deposit and we expect to upgrade a portion of Wassa’s Inferred Mineral Resources into the Indicated category. With our larger exploration budget as a result of the funds received from the investment by our new strategic investor, we are focused on demonstrating the potential of this exceptional deposit and delivering compelling value for our shareholders.”

 

WASSA UNDERGROUND DRILLING RESULTS

 

Golden Star has received assay results for five new DD holes at Wassa Underground, comprising approximately 4,800 m of drilling from surface.  The two step out holes further tested the extents of the F Shoot mineralized corridor at depth, both to the North and South.  The three infill holes targeted the B Shoot’s Inferred Mineral Resources with the objective of converting them into the Indicated Mineral Resource category.

 

Further sections showing the location of the drill holes are available at:

 http://www.gsr.com/operations/wassa/wassa-main

 

Wassa Underground step out drilling results1

 

The results of five holes on the 18700 N step out fence have now been received, including the two new holes reported today.  Two additional holes are underway and one final hole is planned. 

 

The two new holes, BS18DD391D2 and BS18DD392D1, are both ‘daughter’ holes drilled on the 18700 N drill fence, approximately 200 m from the extent of Wassa Underground’s current Inferred Mineral Resources.  The mother holes, BS18DD391M and BS18DD392M, were drilled from surface and a wedge was established at 721 m (approximately 600 m from surface) and 838 m (approximately 750 m from surface) respectively. The daughter holes were then drilled at various angles from the mother hole and their objective was to test above and below the high grade mineralization intersected in hole BSDD391D1 (64.3 m grading 7.4 g/t Au from 577.0 m and 49.7 m grading 5.5 g/t from 792.0 m)2.  The results received to date confirm the extension of the deposit down plunge to the south.

Notes  
1. All widths quoted in this press release are estimated true widths.
2. See press release entitled, ‘Golden Star Extends Wassa Underground Deposit A Further 200 Metres To The South’, dated September 20, 2018

 

 

Wassa Underground infill drilling results

 

The results of three new infill holes are also reported today, which had the objective of converting Inferred Mineral Resources in the B Shoot zone to the Indicated Mineral Resource category.

 

Two of the six planned holes on drill fence 19450 N, which is located 50 m south of the current Mineral Reserves, have been completed.  These holes have the objective of converting Inferred Mineral Resources to the Indicated category by reducing the drill spacing to 50 m x 50 m. 

 

All of the infill drilling conducted in the 2018 drilling program to date has confirmed the widths and grades of the main B Shoot gold mineralization, in addition to extending this zone up and down dip.  This drilling has also defined hanging wall and foot wall zones of gold mineralization, which are of sufficient thickness and grade to be amenable to underground mining.  Golden Star intends to include these holes in the 2019 Mineral Resource model update for Wassa Underground and it is expected to deliver an increase in all categories of Mineral Resources in this area.

 

Significant intercepts

 

The full set of drilling results released today is listed in Appendix A, including the significant intercepts set out below. 

 

 

HOLE ID Azimuth
(°)
Dip
(°)
From
(m)
To
(m)
Drilled
Width
(m)
Estimated
True
Width (m)
Grade
Au
(g/t)
Drilling
Objective
Target
BS18DD393M 92.7 -75.1 374.1 422.2 48.1 38.9 2.9 Infill B Shoot
Including 91.6 -74.8 397.5 403.5 6.0 4.9 5.2 Infill B Shoot
Including 91.0 -74.9 414.0 422.2 8.2 6.6 4.6 Infill B Shoot
BS18DD393M 94.7 -75.3 620.0 637.5 17.5 14.1 3.6 Infill B Shoot
BS18DD393M 93.7 -75.7 648.9 663.9 15.0 12.0 3.8 Infill B Shoot
BS18DD393M 90.4 -75.8 774.5 787.5 13.0 10.4 11.9 Infill B Shoot
Including 90.3 -75.7 776.5 784.5 8.0 6.4 16.2 Infill B Shoot
BS18DD392D1 81.6 -49.6 764.0 771.0 7.0 4.9 4.0 Step Out F Shoot
BS18DD392D1 81.6 -49.6 784.0 791.0 7.0 4.9 6.6 Step Out F Shoot
BS18DD392D1 84.7 -49.2 944.0 967.0 23.0 16.2 6.7 Step Out F Shoot
BS18DD391D2 86.4 -55.4 256.7 281.7 25.0 15.6 4.0 Step Out F Shoot
Including 86.4 -55.4 267.4 275.7 8.3 5.2 6.7 Step Out F Shoot
BS18DD391D2 86.7 -55.1 286.7 295.7 9.0 5.7 5.8 Step Out F Shoot
BS18DD391D2 86.7 -54.1 315.0 325.0 10.0 6.4 4.3 Step Out F Shoot
BS18DD391D2 88.1 -52.1 430.0 438.0 8.0 5.3 4.6 Step Out F Shoot
BS18DD002 78.2 -67.4 447.0 455.0 8.0 5.6 4.4 Infill B Shoot
BS18DD002 75.4 -66.3 587.0 603.8 16.8 12.0 6.7 Infill B Shoot
Including 75.4 -66.3 592.4 599.8 7.4 5.3 11.3 Infill B Shoot
BS18DD001 90.1 -71.9 314.0 322.0 8.0 5.2 3.6 Infill B Shoot
BS18DD001 84.0 -72.6 427.1 431.3 4.2 2.7 4.3 Infill B Shoot
BS18DD001 83.2 -72.2 579.2 584.0 4.8 3.1 12.6 Infill B Shoot
BS18DD001 84.4 -73.2 589.0 605.0 16.0 10.0 3.3 Infill B Shoot
BS18DD001 81.4 -73.2 621.4 634.4 13.0 8.1 4.8 Infill B Shoot
BS18DD001 80.4 -73.2 646.2 669.0 22.8 14.3 3.6 Infill B Shoot
BS18DD001 80.4 -73.2 674.0 679.0 5.0 3.1 5.1 Infill B Shoot
BS18DD001 80.4 -73.2 690.0 693.0 3.0 1.9 4.1 Infill B Shoot

 

 

Wassa Underground’s current drilling program and next steps

 

There are currently five drill rigs in operation at Wassa Underground, two rigs conducting step out drilling (testing the extents of the F Shoot mineralized zones on Section 18700 N) and three rigs conducting infill drilling (for the purpose of converting B Shoot Inferred Mineral Resources to Indicated Mineral Resources).  Golden Star intends to release further drilling results from Wassa Underground in the first quarter of 2019.

 

All monetary amounts refer to United States dollars unless otherwise indicated.

 

Company Profile:

 

Golden Star is an established gold mining company that owns and operates the Wassa and Prestea mines in Ghana, West Africa. Listed on the NYSE American, the Toronto Stock Exchange and the Ghanaian Stock Exchange, Golden Star is focused on delivering strong margins and free cash flow from its two high grade, low cost underground mines. Gold production guidance for 2018 is 225,000-235,000 ounces at a cash operating cost per ounce of $790-830.  As the winner of the PDAC 2018 Environmental and Social Responsibility Award, Golden Star is committed to leaving a positive and sustainable legacy in its areas of operation.

 

APPENDIX A

 

Wassa Underground step out and infill drilling results

 

 

HOLE ID Azimuth
(°)
Dip
(°)
From
(m)
To
(m)
Drilled
Width
(m)
~True
Width
(m)
Grade
Au
(g/t)
Drilling
Objective
Target
BS18DD001 90.1 -71.9 314.0 322.0 8.0 5.2 3.6 Infill B Shoot
BS18DD001 84.0 -72.6 427.1 431.3 4.2 2.7 4.3 Infill B Shoot
BS18DD001 83.2 -72.2 579.2 584.0 4.8 3.1 12.6 Infill B Shoot
BS18DD001 84.4 -73.2 589.0 605.0 16.0 10.0 3.3 Infill B Shoot
Including 84.4 -73.2 593.0 597.2 4.2 2.6 7.8 Infill B Shoot
BS18DD001 81.4 -73.2 621.4 634.4 13.0 8.1 4.8 Infill B Shoot
BS18DD001 80.4 -73.2 646.2 669.0 22.8 14.3 3.6 Infill B Shoot
BS18DD001 80.4 -73.2 674.0 679.0 5.0 3.1 5.1 Infill B Shoot
BS18DD001 80.4 -73.2 690.0 693.0 3.0 1.9 4.1 Infill B Shoot
BS18DD002 78.1 -66.1 413.2 425.2 12.0 8.6 2.9 Infill B Shoot
Including 78.1 -66.1 421.2 425.2 4.0 2.9 5.1 Infill B Shoot
BS18DD002 78.7 -66.3 429.2 434.2 5.0 3.6 5.2 Infill B Shoot
BS18DD002 78.2 -67.4 447.0 455.0 8.0 5.6 4.4 Infill B Shoot
BS18DD002 75.4 -66.3 587.0 603.8 16.8 12.0 6.7 Infill B Shoot
Including 75.4 -66.3 592.4 599.8 7.4 5.3 11.3 Infill B Shoot
BS18DD391D2 86.2 -55.5 231.0 240.0 9.0 5.6 2.6 Step Out F Shoot
BS18DD391D2 86.4 -55.4 256.7 281.7 25.0 15.6 4.0 Step Out F Shoot
Including 86.4 -55.4 267.4 275.7 8.3 5.2 6.7 Step Out F Shoot
BS18DD391D2 86.7 -55.1 286.7 295.7 9.0 5.7 5.8 Step Out F Shoot
BS18DD391D2 86.9 -54.7 302.0 308.0 6.0 3.8 2.5 Step Out F Shoot
BS18DD391D2 86.7 -54.1 315.0 325.0 10.0 6.4 4.3 Step Out F Shoot
BS18DD391D2 88.1 -52.1 430.0 438.0 8.0 5.3 4.6 Step Out F Shoot
BS18DD391D2 88.2 -51.2 492.0 516.5 24.5 16.6 1.7 Step Out F Shoot
BS18DD391D2 87.1 -50 535.0 553.0 18.0 12.5 1.8 Step Out F Shoot
Including 87.1 -50 546.0 550.0 4.0 2.8 3.3 Step Out F Shoot
Including 87.1 -50 681.0 685.0 4.0 2.8 3.1 Step Out F Shoot
BS18DD391D2 86.8 -50.2 681.0 694.7 13.7 9.5 1.6 Step Out F Shoot
BS18DD392D1 82.8 -49.6 755.0 760.0 5.0 3.5 1.2 Step Out F Shoot
BS18DD392D1 81.6 -49.6 764.0 771.0 7.0 4.9 4.0 Step Out F Shoot
BS18DD392D1 81.6 -49.6 784.0 791.0 7.0 4.9 6.6 Step Out F Shoot
BS18DD392D1 81.5 -49.3 819.0 823.0 4.0 2.8 4.6 Step Out F Shoot
BS18DD392D1 84.7 -49.2 944 967 23 16.2 6.7 Step Out F Shoot
BS18DD392D1 81.2 -49.3 1041 1049 8 5.6 3.0 Step Out F Shoot
BS18DD392D1 80.7 -49.5 1072 1080 8 5.6 2.3 Step Out F Shoot
BS18DD393M 92.7 -75.1 374.1 422.2 48.1 38.9 2.9 Infill B Shoot
Including 91.6 -74.8 397.5 403.5 6.0 4.9 5.2 Infill B Shoot
Including 91.0 -74.9 414.0 422.2 8.2 6.6 4.6 Infill B Shoot
BS18DD393M 89.6 -75.1 443.7 459.7 16.0 12.9 2.6 Infill B Shoot
BS18DD393M 91.9 -75.7 594.0 607.1 13.1 10.5 2.3 Infill B Shoot
BS18DD393M 94.7 -75.3 620.0 637.5 17.5 14.1 3.6 Infill B Shoot
BS18DD393M 93.7 -75.7 648.9 663.9 15.0 12.0 3.8 Infill B Shoot
BS18DD393M 91.9 -76.2 667.9 677.9 10.0 8.0 2.2 Infill B Shoot
BS18DD393M 93.2 -76.1 685.3 691.3 6.0 4.8 2.3 Infill B Shoot
BS18DD393M 92.0 -76.1 716.0 721.0 5.0 4.0 3.3 Infill B Shoot
BS18DD393M 90.4 -75.8 774.5 787.5 13.0 10.4 11.9 Infill B Shoot
Including 90.3 -75.7 776.5 784.5 8.0 6.4 16.2 Infill B Shoot

 

Posted December 17, 2018

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