Explore Our Expertise in Mining Process Engineering
Southern Cross Process Technologies delivers tailored engineering services in solvent-extraction, heap-leaching, and electrowinning to advance mining operations efficiently and sustainably.
We carry out due-diligence studies for clients or third parties. We offer due-diligence services for reviewing testwork, feasibility studies, cost estimates and for existing plants, anywhere in the world.

Discover Our Engineering Excellence
Our SX-EW plants and heap leach projects range from small test plants to 50,000tpa cathode output. The most common sizes we encounter in copper range from 5,000 to 20,000 TPA cathode. While copper plants are the most common we also design SX plants for purification of nickel and cobalt solutions, for extraction of boron in the purification of lithium brines, scandium recovery and rare earth purification.
Our approach to design starts with confirming the key design requirements with our client. These typically specify plant capacity, location and feed solution characteristics. Using the extraction isotherms developed from test work we determine the number of extraction and stripping stages, and the size of all equipment. When electrowinning is involved, power supply becomes an important consideration so we design the electrical system for the project. Site evaluation is carried out in the early phase of design to assess layout options, ground conditions, ease of construction and logistics for equipment delivery.




Proven Engineering Successes from Our Projects
The detailed phases of our engineering approach will guide you through design, procurement, construction, and delivery for mining plants.
Our Mining Plants Enhance Production Efficiency
We specialise in procurement and equipment supply for SX-EW plants. Our project engineers and procurement staff’s experience in sourcing and supplying the equipment we use to build our SX-EW plants allows your project to produce quickly.
Our optimum supply chain is made up of SouthernX proprietary equipment which we design and modify to suit each project. We use selected fabricators in competitive locations for your project. Manufactured equipment items are purchased from suppliers we have worked with previously so we can assure quality supply.


Sustained Growth Through Innovative Process Technologies
We take an in-depth look at your requirements to overcoming technical hurdles in heap-leaching systems, to achieve superior performance and cost savings.
Our procurement team can negotiate effectively with suppliers worldwide to make necessary arrangements for logistical demands, such as packaging and delivering equipment to any project site.
Revolutionizing Mining Processes with Expert Engineering
Our comprehensive services optimize electrowinning workflows, reducing downtime and increasing capacity.
We use experienced construction teams familiar with all aspects of SX-EW plant construction. We work with project management systems to stream line all aspects of construction, from erection sequence, workmanship, quality and safety.
We understand construction schedules for SX-EW, and know how to manage our construction budget to deliver the best outcome for our clients.

