Industries

Alumina

Innovative engineering solutions that support Australia's alumina potential

Everything engineered for efficiency, sustainability, and next-generation innovation.

Soto is at the forefront of engineering solutions that enhance efficiency, reliability, and sustainability in alumina refining and smelting. Our expertise spans balance-of-plant systems, high-temperature processing, construction engineering, and emissions control, ensuring major industry players can optimise operations, meet compliance requirements, and drive innovation.

Soto’s technical expertise has been instrumental in pioneering projects, including Rio Tinto Yarwun’s transition to hydrogen-fired calcination—a first-of-its-kind initiative aimed at decarbonising the alumina industry. This project represents a massive leap forward, pushing the boundaries of high-risk technical innovation in industrial sustainability.

With deep industry knowledge, problem-solving capability, and a focus on constructability, Soto partners with alumina producers to design, build, and refine high-performance engineering solutions for a more efficient and sustainable future.

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Australian owned and operated

Supporting sovereign capability with Australian ingenuity. As an end-to-end design house, we manage every stage in-house for seamless delivery and quality assurance.

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Experience meets innovation

26+ years of expertise in heavy industry, integrating cutting-edge engineering solutions with real-world experience.

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Partnership approach

We prioritise outcomes over cost, delivering value-driven engineering solutions that align with your long-term success.

Everything Engineered for Alumina Operations

Process Infrastructure & Equipment Construction & Temporary Works Environmental & Air Quality Solutions Specialist Engineering Services for the Alumina Industry

Process Infrastructure & Equipment

Engineering reliable, high-performance systems for alumina processing.

  • Hydrogen-fired and natural gas calcination
  • Balance-of-plant systems
  • Burner equipment
  • High-temperature ducts and vessels

Construction & Temporary Works

Ensuring safe, efficient construction and maintenance in alumina facilities.

  • Safe access systems
  • Industry-leading overhead protection
  • Lifting studies and equipment
  • Construction engineering support

Environmental & Air Quality Solutions

  • Dust collection systems
  • Emissions control and process optimisation

Specialist Engineering Services for the Alumina Industry

Comprehensive digital engineering and technical analysis to support alumina facility design, optimisation, and compliance.

Finite Element Analysis (FEA)

Computational Fluid Dynamics (CFD)

3D Modelling and Digital Prototyping 

Structural Integrity Assessments

Value-add engineering in alumina

Soto’s value-engineered approach ensures that every structural, mechanical, and pipework solution delivers efficiency, reliability, and long-term performance while minimising cost and risk.

Optimised structural solutions

Smarter material selection and efficiency-driven designs reduce costs, improve safety, and extend asset lifespan.

Performance-driven mechanical design

Advanced analysis and process insights enhance throughput, energy efficiency, and operational reliability.

Seamless, high-performance pipework

Precision-engineered pipe systems ensure plant-wide reliability, minimising failure risk and optimising efficiency.

Our diverse set of in house skills are ready 
to support your next project.

We bring diverse and extensive expertise to every project. Our team is equipped with a range of capabilities and services, including:

Services