Big Timber, MT 59011 • (34.7 miles) • Full Time • $130,000 / yr • 10/28/2026

General Foreman - Concentrator Support & Maintenance Location: East Boulder Mine - McLeod, MT Schedule: 7X7 Nightshift Job Responsibilities and Duties: The General Foreman - Concentrator leads the safe, compliant, reliable, and cost-effective operation of the mine-site concentrator, surface haulage, and TSF capping/IBWR placement. The role owns the rolling one- to three-month plan and translates it into resource-ready, executable one-week plans for frontline supervisors. The General Foreman anticipates and removes constraints, coordinates operating and maintenance dependencies, develops supervisors and employees, and holds the department accountable for throughput, recovery, concentrate quality, equipment availability, process stability, environmental performance, TSF project schedule adhe

Big Timber, MT 59011 • (34.7 miles) • Full Time • $103,000 / yr • 10/28/2026

Supervisor - Stationary Maintenance Location: East Boulder Mine - McLeod, MT Schedule: 7X7 Rotating Job Responsibilities and Duties: At Sibanye-Stillwater, the Supervisor - Stationary Maintenance provides frontline leadership for the safe, reliable, and cost-effective execution of stationary mechanical maintenance for associated fixed-plant systems. The Supervisor converts the approved weekly schedule and resource-ready work prepared by the Planner - Stationary Maintenance into daily shift execution by validating field readiness, directing stationary-maintenance crews, controlling risk and quality, coordinating equipment access and outages with Operations, and returning accurate completion, condition, and variance information. The Planner owns detailed planning and integrated scheduling ac

Big Timber, MT 59011 • (34.7 miles) • Full Time • $106,000 / yr • 10/24/2026

Supervisor - Mine SLE Location: East Boulder Mine - McLeod, MT Schedule: 7x7 Rotating Job Responsibilities and Duties: The Supervisor - Mine provides frontline leadership for the safe, efficient, and compliant execution of daily underground mining operations. Reporting directly to the Execution General Foreman, this position converts the approved one-week plan into resource-ready daily shift plans, directs crews during execution, verifies work conditions and results, controls variance within delegated authority, and promptly escalates constraints or changes that could affect committed work. The Supervisor provides shift execution results, immediate operating decisions, safety or workforce escalations, and recovery actions to the Execution General Foreman. They provide validated readiness i

Big Timber, MT 59011 • (34.7 miles) • Full Time • $33.66 to $39.01 / hr • 10/24/2026

Sand Plant Operator 1 or 2 Location: East Boulder Mine - EB Schedule: Rotating - 7X7 Job Responsibilities and Duties: Operates underground backfill plants. Operates high- pressure slurry pumping systems. Monitors the slurry silo filling. Coordinates intake and output from silos. Monitors the slurry intake and output to the Geho back fill pumps at the sand plants as required. Draw density samples and record pertinent data related to back fill operations. Perform routine maintenance and troubleshoot breakdowns. Maintain operational records on a shift-by-shift basis. Perform other duties as assigned from time to time at the discretion of the company. Qualifications and Skills: Stationary equipment operations and maintenance background. Piping and valve installation/maintenance. Monitor slurry

Big Timber, MT 59011 • (34.7 miles) • Full Time • $41.34 to $44.84 / hr • 10/24/2026

Millwright 1 or 2 - Concentrator Location: East Boulder Mine - McLeod, MT Schedule: 7X7 Rotating Job Responsibilities and Duties: Responsible for performing preventative maintenance and repairs of Ball Mills and SAG Mills, gear boxes, centrifugal and vertical turbine pumps, vibrating screens, jaw crushers, cone crushers and conveyor systems. Perform a variety of building maintenance tasks. Able to work without direct supervision. Maintain cleanliness of work areas. Other tasks as assigned. Qualifications and Skills: Required: Millwright or similar background with welding and mechanical experience. Housekeeping standards maintained to high level. Basic knowledge of mechanics, hydraulic and pneumatic systems. General blueprint knowledge. Ability to work in adverse weather conditions. Underst

Big Timber, MT 59011 • (34.7 miles) • Full Time • 10/21/2026

Maintenance Planner Location: East Boulder - McLeod, MT Schedule: 5x2, 4x3 - 9-hour days Job Responsibilities and Duties: The Mobile Maintenance Planner defines priorities for criticality of equipment and ensures that reliability centered maintenance tactics are reflected in the maintenance plans. The planner incorporates asset strategies and enhance planning processes to improve workplace safety, service quality and data accuracy. The planning activities contribute to establishing a work environment committed to excellence, by ensuring that labor needs are effectively balanced. This role requires substantial coordination with others. The Mobile Maintenance Planner works closely with the maintenance general foreman and supervisors regarding work priorities and to ensure that work packages

Big Timber, MT 59011 • (34.7 miles) • Full Time • $106,000 / yr • 10/23/2026

Supervisor - Mine Support - UG Backfill & Construction Location: East Boulder - McLeod, MT Schedule: 7X7 Rotating Job Responsibilities and Duties: The Supervisor - Underground Backfill & Construction leads the safe, efficient, and compliant execution of underground backfill and mine-infrastructure construction. Reporting to the General Foreman, this position converts the weekly plan into resource-ready shift work. The position directs backfill placement, barricade and bulkhead work, concrete, shotcrete, piping, pumping, excavation, fabrication, and underground service installations. They coordinate with Operations, Maintenance, Technical Services, and contractors to support the overall execution of mine objectives. The Supervisor verifies work readiness and quality, manages variance within

Big Timber, MT 59011 • (34.7 miles) • Full Time • $101,000 / yr • 10/24/2026

Supervisor - Mine Development Location: East Boulder Mine - McLeod, MT Schedule: 5x4, 4x5 11.5hr Shifts Job Responsibilities and Duties: The Supervisor provides frontline leadership for the safe, efficient, and compliant execution of underground mining operations. Reporting to the General Foreman, this position translates the approved weekly plan into resource-ready shift execution, directs and verifies work in the field, holds crews accountable for performance, manages operational variance within delegated authority, and escalates constraints or changes that may affect committed work. The Supervisor coordinates with crews, peers, management, Maintenance, Technical Services, Safety, Training, Human Resources, and other support functions to maintain safe and reliable operations and achieve