Alpha HPA • Yarwun, Central QLD
Resources / Refining • Turnkey Delivery • Ahead of Schedule
Alpha HPA is an Australian company that has commercialised a purification technique for aluminium, producing a range of ultra-high purity aluminium materials. Following the success of their Stage 1 facility at Yarwun, Alpha HPA is constructing a larger scale facility set to become one of the largest single-site ultra-high-purity alumina refineries globally.
As Alpha HPA scaled toward Stage 2 commissioning, the site needed dedicated office space for a growing Operational Readiness team. Available space at the Yarwun facility was extremely limited.
The solution required creative site planning: the office complex would need to be constructed over an existing swale drain to conserve room on site. This introduced engineering complexity around foundations and structural support that went well beyond a standard modular building deployment.
Exterior — showing raised foundations and dual access ramps with safety railings
Three-quarter view — full complex with air conditioning and entry ramps at both ends
Multitrade Building Hire worked closely with Alpha HPA to design and deliver a fit-for-purpose 12×9m office complex tailored to the site's constraints. After the installation location was confirmed, the MBH team arranged for engineering to visit site and address all requirements for building over the swale drain.
Steel beams were fabricated and welded to custom footings to support the structure. Multitrade coordinated the full scope of work, including transportation of beams, crane hire for lifting into position, and a boilermaker to weld beams to footings on site. All excavation and electrical works were completed in full compliance with the site's permitting requirements.
The installation ran smoothly and was completed ahead of schedule, allowing Alpha HPA to hand over the space to their operations team on time.
Multitrade handled every phase — from engineering assessment to ahead-of-schedule handover:
After the installation location was confirmed, the Multitrade team arranged for engineering to visit site and assess all requirements for building over the existing swale drain.
Steel beams were fabricated and welded to custom footings designed to span the swale drain — a solution that preserved the drainage infrastructure while providing a stable foundation for the complex.
Multitrade coordinated transportation of the office complex modules and steel beams to the Yarwun site, managing all logistics for the restricted-access refinery environment.
Crane hire was arranged to lift the steel beams and building modules into position. A boilermaker attended site to weld beams to footings, ensuring structural integrity.
All excavation and electrical works were completed in full compliance with the site’s permitting requirements, meeting the stringent safety standards of the Alpha HPA facility.
The installation ran smoothly and was completed ahead of schedule, allowing Alpha HPA to hand over the space to their Operational Readiness team on time for Stage 2 preparations.
The office complex has proven fit for purpose as the Operational Readiness team continues to grow in preparation for Alpha HPA's Stage 2 project. The hire arrangement has provided the flexibility needed to scale up as required, with the ability to extend or adjust agreements without issue.
Interior — open-plan office layout with workstation partitions, ready for the operations team
Side elevation — building raised on custom steel beam foundations over the swale drain
From start to finish, the team at Multitrade demonstrated exceptional professionalism and support. They were consistently easy to work with, responsive, and committed to delivering a high-quality product on time.
From engineering site visits to crane hire and boilermaker coordination — Multitrade managed the full scope so Alpha HPA didn’t have to.
When the install location included a swale drain, we designed and fabricated custom steel beam foundations to solve the problem without compromise.
The installation was completed ahead of the agreed timeline, giving the client’s Operational Readiness team early access to their workspace.
The hire model gives Alpha HPA the flexibility to scale up, extend agreements, or adjust as their Stage 2 project evolves — without capital commitment.
Talk to Multitrade Building Hire about your office complex, site accommodation, or modular building needs.
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