Land, Location, and Climate
The 3 Aces property consist of 1,536 Yukon Quartz Mining claims covering an area of approximately 31,400 hectares. These claims were originally acquired by way of three separate option agreements and are subject to small continuing obligations. The property is in southeast Yukon Territory, Canada, beginning near the confluence of the Hyland River and the Little Hyland River and continuing north northwest on the order of 40 kilometers. Located along Yukon Highway 10, also known as the Cantung Mine Road, the property is accessible by road from Watson Lake about 225 km to the south.
Climate at 3 Aces is typical of northern continental regions with long, cold winters, condensed fall and spring seasons and short, mild summers. Snowfall can occur in any month at the property, particularly at higher elevations. This area is mostly snow free from early June to late September and work programs can be performed year-round.
Notes
The scientific and technical information in respect of the KSM Project herein was derived from the technical Report entitled KSM (Kerr – Sulphurets – Mitchell) Prefeasibility Study and Preliminary Economic Assessment dated effective August 8, 2022. This information was prepared by leading consulting firms and their Qualified Persons (as defined in NI 43-101), all of who are independent of Seabridge and are listed below along with their areas of responsibility:
(i) Tetra Tech, Inc. under the direction of Hassan Ghaffari P.Eng (surface infrastructure, capital estimate and financial analysis), John Huang P.Eng. (metallurgical testing review, permanent water treatment, mineral process design and operating cost estimation for process, general and administrative (“G&A”) and site services, and overall report preparation)
(ii) Wood Canada Limited, under the direction of Henry Kim P.Geo. (Mineral Resources)
(iii) Moose Mountain Technical Services under the direction of Jim Gray P.Eng. (open pit Mineral Reserves, open pit mining operations, mine capital and mine operating costs, MTT and rail ore conveyance design, tunnel capital costs)
(iv) N. Brazier Associates Inc. under the direction of W.N. Brazier P.Eng. (Electrical power supply, energy recovery plants)
(v) ERM Consultants Canada Ltd. under the direction of Rolf Schmitt P.Geo. (environment and permitting)
(vi) Klohn Crippen Berger Ltd. under the direction of David Willms P.Eng (design of surface water diversions, diversion tunnels, tailing management facility, water treatment dam and RSF and tunnel geotechnical)
(vii) BGC Engineering Inc. under the direction of Derek Kinakin P.Geo., P.L.Eng., P.G. (rock mechanics, geohazards and mining pit slopes)
(viii) WSP Golder Inc., under the direction of Ross Hammett P.Eng (Block Cave mining)