A — Local units
Sized to the deposit
Compact crushing, magnetic separation and concentration circuits, specified against the mineralogy and run by local teams.
Mining Global Group/Processing
Processing
From ore to concentrate
Ship the good product, not the weight. Crush, separate and concentrate near the deposit, and sell the concentrate.
Why concentrate
Value is made between the ore and the smelter
Run-of-mine ore is not a product. No converter buys it and no refinery quotes it. What the market buys is a concentrate: the valuable mineral separated from the rock it came up with, assayed, and delivered against a written specification. Moving rock means paying freight on waste. Moving concentrate means moving the part that is worth something.
The route
Crush, separate, concentrate, assay
Four stages, in this order. The flowsheet is chosen from the mineralogy of the ore, not from a catalogue.
01 — Crush
Crushing and grinding
Size reduction until the valuable mineral is freed from the rock, and no further. Over-grinding wastes energy and loses fines.
02 — Separate
Magnetic separation
Magnetic separation takes magnetic minerals out of the stream and cleans a gravity concentrate of iron-bearing contaminants.
03 — Concentrate
Gravity and flotation
Gravity separation for the heavy minerals: tungsten, tin, tantalum. Flotation for the sulphides, copper and antimony, and for scheelite.
04 — Assay
Assay and sealed samples
Every lot is sampled under a written protocol and assayed independently before it is offered. The assay, not the plant, defines the product.
Mineral by mineral
Each mineral has its own route
Gravity first, magnets to clean
- Wolframite (tungsten): gravity concentration, magnetic cleaning
- Cassiterite (tin): gravity concentration, with magnetic removal of magnetite, wolframite and ilmenite
- Columbite–tantalite (coltan): gravity concentration
Flotation first
- Scheelite (tungsten): flotation, with the gangue depressed
- Stibnite (antimony): flotation; the mineral is friable and does not suit gravity circuits
- Copper sulphides: flotation to a saleable concentrate
Where it is done
Close to the ore
Concentration belongs near the deposit. Less weight travels, more of the value stays in the producing region, and what leaves is a product a buyer can assay and price. The model is local units that crush, separate and concentrate, with the concentrate sold to buyers in the region or worldwide.
B — Existing plants
Third-party plants
Where a plant already runs well, material is processed there under a commercial agreement instead of building a duplicate. It is faster, and it creates no asset that has to be fed every month.
C — Long-term supply
Agreements with those who dig
Concentrate quality starts with the feed. The model is long-term supply agreements with local producers, so a plant receives ore of known character and not whatever the spot market offers.
Areas of interest and development
Where we are working to build this
Romania is our base, and the region around it holds legacy tailings and ore that were never concentrated to modern practice. In Central and East Africa and in South America we have areas of interest and development: ground, producers and ore types that fit this route. These areas are under development. No concentration plant is claimed here as operating, and no volume is stated until it has been confirmed on a running plant.
Origin and paperwork
The file is opened before a tonne moves
Tin, tantalum and tungsten carry a conflict-minerals file. It is opened first, not at closing: origin, chain of custody, sanctions and ownership screening, and the applicable due-diligence framework. Nothing is traded that cannot be traced to a title and a producer.
We sell the concentrate, not the weight.
Nothing on this page is an offer. Specifications, tolerances and terms are confirmed only in a written offer against a certified lot. The processing routes described are general; they are not a statement that any plant of ours is in operation.