The Lupin Mine is located approximately 285 kilometers (km) southeast of Kugluktuk, in the Kitikmeot Region of Nunavut and is owned by Lupin Mines Incorporate (LMI), a wholly owned indirect subsidiary of Alkane Resources Ltd. It is an underground gold mine that was in operation from 1982 to 2005 with temporary suspensions of activities between January 1998 and April 2000, and again between August 2003 and March 2004. The mine resumed production in March 2004 until February 2005. From 2005 until 2019 the Site remained in Care and Maintenance. LMI continued active preparatory work and initiated year one of the active closure phase in Q1 of 2020. Active closure was paused in 2020 and re-entered Care and Maintenance status since. Active preparatory resumed in 2024 and 2025, and active closure is intended to restart in 2026.

Nunavut

Following a 2018 review of Lucara's Underground Preliminary Feasibility Study, JDS was retained to lead the 2019 Underground Feasibility Study. JDS delivered the FS in 10 months, under budget, with significantly improved economics through de-risking and optimizing the mining method, production profile, and diamond release. Based on this success, Lucara sole-sourced JDS for EPCM services on the US$500M underground mine construction, including permitting, new power infrastructure, two 750m+ deep shafts, 15km of lateral development, and underground infrastructure over a 5-year development period.

$500M Botswana

JDS Silver purchased Silvertip from Silvercorp in 2013, completed a PEA for a 1,000 tpd Pb-Zn-Ag operation (1.4M tonnes at 365 g/t Ag, 7.2% Pb, 8.7% Zn), and constructed the mine in 10 months from December 2015. JDS purchased and refurbished the Sa Dena Hes processing plant augmented with Diavik's paste plant, transporting 190 equipment loads to site. Infrastructure included 120' bridge, 26km access road, 150-bed camp, 2,000 m² mill building, 7.5MW LNG powerplant (plus 5MW diesel backup), 150 m³/hr water treatment, dry stack tailings, and event pond. JDS provided underground startup support including shotcreting, CRF, services, and dewatering. Completed safely with 256,043 hours and zero LTIs, on budget and on schedule.

$50M Northern British Columbia

Since November 2021, JDS has provided full-service contract mining for Imperial Metals' Mt. Polley Mine in BC. Technical services (average 5 staff) include short and medium-range mine planning, drill and blast design, mine survey, production tracking, waste rock design, and geotechnical support. JDS provides all front-line supervisors and workers (currently 70 employees) for in-pit operations using Mt. Polley equipment, including all management, pit shifters, health and safety oversight, and training programs. JDS is supplementing the Owner's fleet with equipment including two mobilized DTH drills.

British Columbia

JDS provided comprehensive underground mining services including construction activities (grizzly installation, ore pass rehabilitation, concrete plugs, dewatering stations, weirs, brattices, rollup doors, mine rehabilitation, drawbell construction, steel ventilation and fire doors, surge tanks, raise bore setups and covering), development activities (mechanized ramp and lateral development support, cable bolting, service installation, conventional mining of cutouts and safety bays), production activities (haulage), and Technical Support (survey, ground Support and Construction QA/QC, mine planning, project coordination and support).

$20M+ Kamloops, BC

JDS provided feasibility study support and full EPCM services for Capstone's Minto Mine, delivering a 1,400 tpd copper-gold process plant from acquisition (mid-2005) to commercial production (June 2007). The $100M project included mine development, dry stack tailings facility, custom Yukon River barge, airstrip, 3MW power plant, 130-person camp, and supporting infrastructure. JDS managed detailed engineering through Hatch and EBA, procurement, construction via Clark Builders and Pelly Construction, and commissioning—all on schedule and on budget.

JDS subsequently completed EPCM for two expansions: first to 2,600 tpd with water filtration for environmental discharge, then to 3,500 tpd. Both expansions were delivered on schedule and on budget.

Yukon Territory

JDS transformed a sub-economic diamond project into a viable $750M development through re-scoping studies that optimized waste management, processing rates, and execution strategy. JDS produced the Definitive Feasibility Study and partnered with Hatch to deliver EPCM services for the remote fly-in mine, accessible by 420km ice road only 2 months annually. Construction included complete processing facilities, 14MW power plant, 450-person camp, jet-capable aerodrome, 3M m³ earthworks, 25M BCM dewatering, and 8M BCM pre-stripping. The 3.5M workforce-hour project was completed safely, on budget, on schedule, with first ore delivered June 14, 2016.

Northwest Territories

JDS provided on-site construction management and supervision for the Cow Mountain Portal development, enabling access to a 10,000-tonne bulk sample at Barkerville Gold Mines' Cariboo Gold Project. Work included a 300m non-contact diversion ditch, 6m x 6m x 25m Arch Lock Tunnel with retaining wall, 4,000m² pad construction, and significant earthworks totaling 30,000m³. JDS also managed mobilization of BGM's Sandvik MT-720 Road Header between portals, designed and constructed a 2,200m insulated and heat-traced dewatering pipeline, and provided ongoing operational support for road header operations.

Wells, BC

Since 2017, JDS has delivered project management and EPCM services for critical Nickel Plate Mine closure work, including emergency spillway construction, $6M water treatment plant upgrades completed under budget, and TSF buttress development—providing full-cycle support from feasibility through construction supervision and quality assurance.

$650K British Columbia

JDS, through a 50/50 partnership with Alexco Environmental (MNRLP), is contracted by CIRNAC to remediate and close the Mount Nansen mine site, abandoned in the mid-90s and located 60km northwest of Carmacks, Yukon. Services include engineering, permitting, care and maintenance, and full site remediation.

$100M Yukon Territory