ABOUT SO4

SO4 is on a mission to produce world-class Sulphate of Potash (SOP). Our Lake Way asset is in the Goldfields region of Western Australia, 15 kms south of Wiluna. With our first product successfully delivered and operations ramping up, we are entering an exciting phase of growth.

Be a part of this exhilarating new chapter and join an innovative and forward-thinking mining company at the forefront of a new industry in Australia, who are focused on sustainability and making a change.

Our values guide the way we work every day:

People | Ownership | Nurture | Drive | Safety

We value integrity, accountability, teamwork and continuous improvement while ensuring the safety of our people and the sustainability of our operations.

ABOUT THE ROLE

We are recruiting for a newly established role for Superintendent - Brine / Upstream Operations / Borefields to manage our brine production and processing pond evaporation system in order to produce high‑quality K salts for K fertilizer production.

Your Key Technical Responsibilities will include:

- Manage mass balance, inventory statements and pond chemistry to meet dynamic pond model targets

- Manage the accurate measurement and interpretation of brine and salt grades, flows, volumes, K balances, and other parameters to achieve top‑class operating quality.

- Ensuring high‑quality K salts are produced in an efficient manner and move through the pond system

- Oversee the pumping of brine from production boreholes and its transfer through the pipeline network to the evaporation ponds to meet weekly/monthly production plans

- Manage brine chemistry and the movement of brine through the pond system during evaporation to optimise efficiency, product quality, and recovery.





- Lead grade control, sampling accuracy and reporting

- Ensure continuous paleochannel borefield production, utilisation and GWOS compliance

- Support drilling programs and new production bore installations

- Maintain robust QA/QC, minimise contamination and ensure consistent feed quality

- Lead statutory compliance as Quarry Manager / Schedule 26 appointee

- Deliver accurate grade, pumping, cost and production analytics

- Drive continuous improvement across upstream operations

ABOUT YOU

We’re looking for a highly motivated leader who thrives in a quick‑paced environment, with strong knowledge of dewatering, pumping, borefields, brine transfer into crystallisation ponds, evaporation‑pond chemistry, hydraulics,

To be successful in the role you will have:

- Degree in Chemistry, Geology, or Engineering would be highly regarded

- 10+ years' experience in mining or civil operations, within Potash or knowledge in the brine industry, would be highly regarded.

- WA Quarry Manager’s Certificate + Schedule 26 statutory competencies

- Proficiency in Office 365, Pronto, Aconex and INX

- Proven capability in budgeting, contractor management and operational reporting

- Experience leading diverse operational teams in remote or challenging environments

- Strong ability to interpret technical data,



solve complex problems and make sound operational decisions

- A proactive, safety‑focused approach with a genuine commitment to continuous improvement

- The ability to build strong working relationships and communicate clearly across all levels

WHAT WE OFFER YOU

We offer an inclusive and collaborative culture where people enjoy coming to work, support each other's success, and share knowledge freely while working towards common goals.

Our benefits continue to grow, some of these include:

- Permanent full-time opportunity

- Healthy and competitive salary

- Eligibility to participate in the Short-Term Incentive Program (STIP)

- FIFO ex Perth, short commute direct to site

- Social events

- 8 weeks of Paid Parental Leave, including a return-to-work incentive

- Employee Assistance Program (EAP) and Wellness App

- Salary Packaging (Novated Lease Vehicles, Electronic Devices, Education Expenses, FIFO Travel and FIFO Airport Car Parking)

- Discounts to retail outlets

If You want to lead the Future of Potash Mining Apply Now!

If this role aligns with your experience and career goals, we encourage you to submit your CV and a cover letter outlining your suitability.

Applicants must have full Australian working rights and satisfy all site access and safety requirements, including pre-employment medical, drug and alcohol screening, and National Police Clearance, as required under WA mining regulations.

SO4 celebrates diversity and encourages applicants from culturally diverse backgrounds to apply, including Aboriginal and Torres Strait Islander people, people from diverse cultural backgrounds and people with disabilities.

📌 Superintendent - Brine / Upstream Operations / Borefields (Kalgoorlie - Boulder)
🏢 SO4
📍 Kalgoorlie - Boulder