Laserfiche WebLink
<br />Addendum to Exhibit 77 <br /> <br />April 24, 2024 <br /> <br /> <br />Re: Technical Revision No. TR-153 <br />Drill a 19” pilot hole from the surface at Deer Creek Shaft to the B Seam horizon to <br />allow for the construction of a B to E Seam ventilation shaft. <br /> <br />Once the 19” pilot hole is no longer needed it will be plugged and abandoned by placing an <br />appropriately sized packer down the hole to as close to the E Seam roof as possible. The hole <br />will then be backfilled with a mixture of concrete and bentonite. The casing will be cut off below <br />the surface and the soil regraded to original contour. <br /> <br />At the time the B to E Seam ventilation shaft is no longer needed, seals will be constructed in the <br />three E Seam entries to close off the shaft. These seals will remain in place indefinitely and will <br />be considered final closure. <br /> <br />