Seabridge updates Kerr, Iron Cap inferred resources

The KSM project has reached the early stages of construction which will allow Seabridge to obtain data needed for the environmental application and the feasibility study. Credit: Seabridge Gold

Seabridge Gold (TSX: SEA; NYSE: SA) has updated the resource estimate for the Kerr and Iron Cap deposits at its 100%-owned KSM gold-copper project in northwestern British Columbia. An extra 5.9 million oz. of gold, 3.3 billion pound of copper, 55.4 million oz. of silver and 51 million lb. of molybdenum were added in the inferred category.

The indicated resources increased by 300,000 oz. of gold, 200 million lb. of copper, 3.5 million silver and 2 million lb. of molybdenum.

The estimate used the same metals prices as the 2022 Mitchell and East Mitchell open pit estimates ($1,820/oz. gold, $4.20/lb. copper, $28/oz. silver and $13.5/lb. molybdenum).

The Kerr and Iron Cap deposits will primarily be underground mines with block caving, although there is a portion of the Kerr deposit that can be mined by open pit methods.

The indicated resource at Kerr is 384.2 million tonnes grading 0.22 g/t gold, 0.41% copper, 1.2 g/t silver and 5 ppm molybdenum. The inferred resource is 2.59 billion tonnes at 0.27 g/t gold, 0.35% copper, 1.7 g/t silver and 21 ppm molybdenum.

The Iron Cap deposit contains 471 million indicated tonnes at 0.38 g/t gold, 0.21% copper, 4.3 g/t silver and 39 ppm molybdenum. The inferred portion is 2.31 billion tonnes at 0.41 g/t gold, 0.27% copper, 2.5 g/t silver and 31 ppm molybdenum.

Seabridge chair and CEO Rudi Fronk said the resource restatements reflect gains from a consistent application of metal price parameters. The company is seeking a joint venture partner for KSM, so it believes it makes sense to normalize the estimates across all deposits.

The company further noted that the increased mineral resources compared to the previous estimate would only be mined after the 33 years of mine life based on the open pit reserves. Any future cash flows resulting from these additional mineral resources is not considered material.

In the Mithell, East Mitchell and Sulphurets deposits, the proven and probable reserves are 2.29 billion tonnes grading 0.64 g/t gold, 0.14% copper, 2.2 g/t silver and 76 ppm molybdenum. The contained metal within the reserves is 47.3 million oz. of gold, 7.32 billion lb. of copper, 160 million oz. of silver and 385 million lb. of molybdenum.