Mobile Heavy Diesel Mechanics at Fingals Gold.

Service Requirements at Fingals Gold

Sustaining continuous haul fleet and ancillary equipment availability at an active open pit gold operation demands a mobile heavy diesel mechanics capability that is both technically deep and logistically self-reliant. Fingals Gold, operated by Black Cat Syndicate Limited (ASX: BC8) within the East Coolgardie goldfield corridor, is a producing open pit mine processing Archaean orogenic gold ore. With throughput at the Lakewood facility currently at 1.2 Mtpa and an approved expansion to 1.5 Mtpa, cyclic load on haul truck drivetrains, excavator hydraulic-mechanical systems, and ancillary diesel plant will intensify progressively — placing service intervals and unplanned breakdown response under sustained pressure. The mobile diesel mechanics scope must cover field-based diagnostics, component exchange, and preventive maintenance across the full surface mining equipment fleet, with contractors expected to operate independently of fixed workshop infrastructure for extended periods. Scope documentation should specify mean time to repair (MTTR) for Category 1 unplanned drivetrain failures as a minimum performance threshold.

• Ambient temperature operating range: Demonstrated field service delivery in sustained ambient conditions of 40°C, with documented capability to manage thermal-related failure modes (cooling system diagnostics, heat-soak restart procedures) at peak ambient of 44°C — minimum 24 months verified Goldfields semi-arid exposure within the last five years.
• Unplanned downtime response SLA: Contractually committed 2-hour emergency call-out response for on-site or standby-deployed personnel, with a maximum 4-hour wrench-on-equipment target for Category 1 failures; MTTR evidence from a comparable open pit gold or base metals operation must be submitted with tender response.
• Fleet coverage scope: Demonstrated OEM-authorised or OEM-trained capability across a minimum of two heavy haul truck platforms (e.g. Caterpillar 785/789 series or Komatsu HD785/PC series) plus at least one excavator class ≥100-tonne, with documented service records from surface mining operations as verification.

Site-Specific Operational Constraints

Conditions procurement must communicate to all bidders in tender documentation for Fingals Gold.

• Environment: Goldfields-Esperance semi-arid conditions impose sustained summer ambient temperatures of 40°C and peaks to 44°C, combined with fine lateritic dust ingestion risk that accelerates air filtration and fuel system degradation cycles. Contractors must account for accelerated service intervals on diesel particulate and air filtration systems relative to temperate-climate benchmarks.
• Logistics: Fingals Gold sits approximately 582 km from Perth, with the nearest parts and depot hub at Kalgoorlie (~47 km via sealed and unsealed regional roads). The 582 km Perth distance makes metropolitan-based parts dispatch non-viable for same-shift response; RFQ prerequisites must require either a Kalgoorlie regional depot presence or pre-positioned consignment stock arrangements covering critical wear components and common failure assemblies.
• Response SLA: Emergency call-out window is 2–4 hours for on-site or standby-deployed technicians; extended mobilisation from Kalgoorlie hub must not exceed 12–24 hours for specialist personnel or major component delivery. SLA non-compliance must be subject to KPI-linked financial penalties specified in contract terms.
• Roster: DIDO operations are based out of Kalgoorlie-Boulder; contractors must demonstrate DIDO roster compatibility (minimum 8/6 or 14/7 swing patterns) and maintain a minimum standby crew allocation to cover unplanned breakdown events outside scheduled maintenance windows.
• Camp/facilities: Confirm site-provided accommodation and crib facilities with Black Cat Syndicate Limited (ASX: BC8) procurement prior to RFQ issue; contractors must specify self-sufficiency requirements for any personnel deployed beyond the standard DIDO swing, including light vehicle, communications, and personal protective equipment for 44°C peak heat conditions.

Contractor Capability Checklist

Minimum evaluation criteria for shortlisting Mobile Heavy Diesel Mechanics contractors at Fingals Gold. Each criterion must be verifiable via documentation submitted with tender response.

• Technical certifications: OEM authorisation or documented OEM-aligned training for at least two heavy haul truck platforms relevant to the site fleet; AS 3788 pressure equipment competency where applicable to diesel system components; MARCSTA site safety induction card or equivalent Goldfields-region site access credential.
• Personnel tickets: WA-issued Certificate III in Mobile Plant Technology (MEM30219 or equivalent) as minimum trade qualification; current Senior First Aid certification; valid WA driver's licence class appropriate for site light vehicle operation; Confined Space and Working at Heights tickets where equipment access requires.
• Mobilisation SLA: Documented MTTR and call-out response records from a minimum of one equivalent Goldfields-Esperance open pit operation within the last three years, submitted as a verifiable performance reference — not a self-declared estimate.
• Public Liability insurance: Minimum AUD $20M per occurrence (Certificate of Currency required with tender response).
• Professional Indemnity: Minimum AUD $10M aggregate required where scope includes technical specification of component upgrades, maintenance programme design, or written diagnostic recommendations.
• Workers Compensation: Full statutory cover under WA law (WorkCover WA — Injury Management Plan required and must be submitted with prequalification documentation).
• Site exposure: Minimum three years cumulative surface mining exposure on open pit gold or equivalent hard-rock operations, with at least one reference site operating in ambient conditions ≥40°C; commodity type and extraction method must be specified in the reference submission.
• Safety systems: Documented HSE management system certified to ISO 45001 or equivalent; demonstrated ICAM (Incident Cause Analysis Method) investigation capability required given the remote operating environment and regulatory expectations under the WHS (Mines) Regulations 2022 (WA).

Regulatory & HSE Framework

The applicable regulatory framework is the Work Health and Safety Act 2020 (WA) and the Work Health and Safety (Mines) Regulations 2022 (WA), administered by WorkSafe WA. For mobile heavy diesel mechanics operating in a surface mining environment, specific obligations include plant registration requirements for relevant diesel equipment, management of hazardous chemicals (fuel, lubricants, hydraulic fluids) under the WHS Act 2020 hazardous chemicals provisions, and compliance with site-specific traffic management plans governing mobile plant interaction in the open pit. Contractors must maintain current Safe Work Method Statements (SWMS) for all high-risk construction and maintenance work as defined under the WHS (Mines) Regulations 2022 (WA). Supplier portal not publicly confirmed. Verify via Black Cat Syndicate Limited (ASX: BC8) corporate procurement contact. All contractors must complete site-specific induction via Black Cat Syndicate Limited (ASX: BC8) procedures before mobilisation.

Sourcing Qualified Contractors

No confirmed tender activity for this service at Fingals Gold is on record at the time of this briefing; procurement teams should initiate market engagement proactively given the operation's active production status and the lead time required to establish KPI-linked maintenance contracts with verified MTTR performance history.

The regional labour pool for Mobile Heavy Diesel Mechanics in the Goldfields-Esperance region is centred on Kalgoorlie (~47 km from site), with approximately five or more active providers operating across the East Coolgardie and broader Goldfields corridor. This pool is shared across multiple producing gold and nickel operations in the region, meaning contractor availability tightens during peak maintenance cycles — particularly in the March–April and October–November periods when scheduled major services coincide across sites. Procurement must factor this competition for Kalgoorlie-based technician capacity into RFQ timing, and weight pre-positioned parts arrangements and dedicated standby crew commitments heavily in evaluation scoring.

No incumbent contractors are confirmed for this scope at Fingals Gold. Allow a minimum of six to eight weeks for prequalification, insurance verification, and SWMS review prior to planned mobilisation. RFQ documentation must include the KPI schedule with MTTR penalty triggers as a non-negotiable contract attachment, not a post-award negotiation item.