Northern Territory Numbered Acts Northern Territory Numbered Acts(1) Category 1 , in relation to a mineral, means the mineral receives only primary treatment that:
(a) prepares the material for further processing; and
(b) improves the mineral's consistency for sale; and
(c) provides a consistent feedstock for further processing of the mineral.
Examples of primary treatment for subsection (1)
Crushing, screening, blending and product handling.
(2) Category 2 , in relation to a mineral, means the mineral receives only secondary treatment consisting of concentration and ore dressing that reduces the particle size and increases the concentration of the mineral primarily through physical processes.
Examples of concentration and ore dressing for subsection (2)
Gravity separation or flotation.
(3) Category 3 , in relation to a mineral, means the mineral receives only secondary treatment consisting of metallurgical treatment, chemical treatment or combinations of biological, chemical and heat treatments prior to final treatment.
Metallurgical treatment can require high temperatures and pressure treatment with a variety of chemical and energy inputs.
(4) Category 4 , in relation to a mineral, means the mineral receives final treatment consisting of refining or other advanced metallurgical processing to produce a mineral suitable for its major end use.