Engineering complex resource systems from feasibility to operation.
Westech International delivers end-to-end engineering, EPC/EPCM, technical review and operational optimisation for natural resource and energy projects.
Proven end-to-end technical delivery on complex natural resource and energy projects.
Project Development and Feasibility
Project development from exploration through scoping, pre-feasibility and definitive feasibility studies, delivering financeable outcomes aligned with JORC and NI 43-101 standards.
Operations, Turnaround and Expansion
Operational engineering and management to stabilise, optimise and expand mining and processing assets, including turnaround of distressed operations and delivery of sustained performance improvements.
Infrastructure, Energy and EPC/EPCM
Engineering design and delivery of mining, processing, energy and site infrastructure systems, including EPC and EPCM services in complex and remote environments.
Independent Technical Review and Due Diligence
Independent technical review, due diligence and advisory services supporting investment decisions, project financing and board-level approvals.
On the ground operators delivering measurable results across the full project lifecycle.
Westech delivers engineering, infrastructure and operational capability from early-stage feasibility through to design, construction, commissioning and long-term performance.
Owner-operator experience
Westech has designed, built, owned and operated the kinds of assets it now consults on, through four decades of work in Europe, Africa, the Americas and Asia-Pacific.
Access to capital through the Wesson Group
Lionsbridge, Westech's sister company, has raised over US$800M for natural resource and energy projects in the Group's portfolio. When engineering needs financing alongside it, the introduction is internal.
Proven turnaround capability
Distressed operations stabilised and returned to production with measurable outcomes. Loss-making to profitable inside eighteen months at Mineral Hill. Care-and-maintenance to first gold pour in eighteen months at Otso. Dormant US$200k shell to US$110M producer at Woulfe.
Local capability as standard
2,800+ local operators trained through the project portfolio. At Vatukoula, the workforce was rebuilt to a fully Fijian operating team. At Woulfe, Fijian crews were deployed to train Korean teams.
Designed for long-term production
Engineered controls before procedural ones. Best-available technology over lowest-cost. Closure designed at feasibility, not retrofitted at end of life.
A consolidated team of resources and energy specialists with hands-on experience from design to optimisation.
Westech's expertise spans gold, complex sulphides, uranium, base metals, tungsten, LNG and renewables, with hands-on experience in each.
Early Works & Feasibility
Westech picks up projects at the earliest, most ambiguous phase, when the right technical questions determine whether capital is deployed well. The same team carries projects from commodity thesis and exploration supervision through fully compliant feasibility studies, permitting and Competent-Person sign-off, and on to site mobilisation, access roads and bulk earthworks. The work that decides whether construction starts on schedule.
Mine Design and Development
Westech has development and operational experience from surface open-cut to 3.5 km below surface, including hoisting, refrigeration, ice plants and fire prevention. At Woulfe, a 7 m-diameter adit was developed for bulk mining. At Vatukoula, operations sustain at 2,400 m depth and 65°C face temperature.
Metallurgy and Process Engineering
From gold CIL, CIX uranium and BIOX refractory treatment through to tungsten APT, sulphuric acid plants and LNG cryogenics. Process plants are designed and commissioned in-house. At Otso, the plant was commissioned at 95% recovery on a 1.2 g/t head grade.
Infrastructure and Energy Systems
Remote resource projects demand self-sufficient infrastructure. The energy division has delivered diesel, coal and gas-fired plants, renewable plus storage hybrids, run-of-river hydro and green-hydrogen / ammonia systems. At Vatukoula, that meant a 20 MW diesel power station underwriting production continuity at depth.
EPC and EPCM Project Delivery
Westech delivers EPC and EPCM end-to-end across mining, processing, energy and site infrastructure. The same engineers who design the plant carry it through procurement, construction, commissioning and handover. At Otso, that meant first gold pour within 18 months of taking control. At Mineral Hill, a 500,000 tpa gold plant was designed and constructed in 12 months.
Environmental and Water Management
Tailings dams up to 78 m high, engineered for 0.5 m/s ground acceleration in tropical high-rainfall regions. Water management extends from 60 ML/day process circuits through HDS, wetlands and delta stacks. The first fully contained cyanide mixing and management system was installed within the CIL bund at Mineral Hill.
Operations and Maintenance Systems
Westech takes accountability for steady-state production. Specific expertise in rescuing loss-making operations: fixing grade control, debottlenecking processing plants, rebuilding workforces and installing the management systems that sustain improvement. At Mineral Hill, a US$20M annual loss was reversed to a US$35M annualised profit within 18 months.
Stakeholder and Community Integration
Local hiring is the default. Operating capability is built into the host workforce from project mobilisation. At Vatukoula, the underground workforce was rebuilt to a fully Fijian operating team. At Woulfe, experienced Fijian crews were deployed to train Korean teams.
Built by operators. Proven in production. Engineering that lasts.
Independent engineering and technical capability throughout the project lifecycle: from feasibility and design through to restart, expansion and operational optimisation. Six case studies demonstrating delivery in complex, real-world conditions.
Otso Gold
First pour in 18 months. US$70M creditor liabilities negotiated across 20 companies. Plant commissioned at 95% recovery on 1.2 g/t head grade.
Mineral Hill
US$55M turnaround in 18 months. A US$20M loss polymetallic operation returned to US$35M value.
Black Dragon
Creditor-closure track to US$1B NPV via legal-dispute resolution, CA$8M financing, ASX dual-listing and project repositioning.
Vatukoula Gold Mine
Acquired for US$30M, vended at £80M AIM listing. 1 Mtpa restart at 1,200m depth and 65°C face temperature. Zero LTI over two years.
Woulfe
Dormant 20-year-idle tungsten mine. US$200k shell → US$110M valuation. US$120M Shinhan Bank debt + IMC / Korean Zinc / CFS / Dundee equity.
Browns Oxide
1.2 Mt multi-metal SX/EW operation for Compass Resources. Front-end crushing, leach, CCD and SX/EW circuits delivered. Copper cathode produced for market.
Let's discuss the next phase of your project.
Westech International Pty Ltd
Level 17, Chifley Tower
2 Chifley Square
Sydney NSW 2000
+61 (02) 9375 2375