US Copper Production Targeted for Q4, 2019

March: Pumpkin Hollow Progress and Construction Update

March 14, 2019

March: Pumpkin Hollow Progress and Construction Update

MARCH: PUMPKIN HOLLOW PROGRESS AND CONSTRUCTION UPDATE

As we approach the middle of March, it's time to share the latest construction update and site photos. Once again, we remain on track to enter production in Q4 of this year.

(Main shaft headframe, east north vent shaft headframe and surrounding works)

East Main Shaft

We have completed the utilities and ventilation infrastructure down the entire length of the main production shaft to supply power and air to the 2850 and 2770 levels.

With the installation of utilities complete, work has resumed on lateral development at the 2770 and 2850 levels.  Excellent progress has been made during the last few months with over 600ft of lateral development now complete.

Underground infrastructure, including a temporary powder magazine, temporary shop, sumps and mucking bays, has either been completed or is in the process of development.

Up next: Complete lateral development to the bottom of the East North Ventilation shaft on the 2850 level and start full face mechanized lateral development on the 2770 level.

(Mucker and vent bag during lateral development)

East-North Vent Shaft

The East North ventilation shaft headframe has been completed and commissioned. Strong progress has been made during the learning curve for sinking and vertical development has advanced over 260 feet from surface

Up next: Continue to sink shaft while meeting scheduled development targets. Set up the Alimak mining method at the bottom of the East North Ventilation shaft to begin excavation of the bottom 300 feet and the loading pockets.

Surface Works

Excellent progress has been made on the surface process plant as follows:

  • SAG mill foundation has been completed and the pedestal rebar is being installed
  • The regrind mill foundations have been set and poured
  • Conduits for the Ball, SAG, Regrind mills have been completed
  • Water tank has been formed and concrete poured
  • Conduit and initial concrete slab have been completed for the Thickener Tank
  • Equipment procurement is over 60% complete.

Additionally, the tender process for the administration and change room building is complete and we are entering into final negotiations.

The detailed requests for quotations have been issued to multiple firms for the paste backfill plant.

Up next: Completion of engineering works and the majority of equipment procurement. Additional foundation works for the process plant. Commencement of construction of the admin/dry building. Receipt of bids for the paste backfill plant.

(Vertical formwork for SAG mill foundation)

(Vertical formwork for SAG mill foundation)

(Process fresh water tank)

Please get in touch with any questions and be sure to subscribe to our mailing list to receive the latest news releases and updates as they are released.

David Swisher, SVP of Operations

Subscribe to our Email List