01 · COLLECT THE ORE
FROM THE MINE TO THE PROCESSING SITE.
Under the NORSE operating model, the PML holder makes the ore available for loading at the mine. The mine owner’s practical responsibility is to ensure that the trucks can be loaded.
NORSE then arranges collection and transport of the ore to the processing site. The planned operating concept is designed for participating mines within a radius of approximately 300 kilometres.
This creates a clear starting point for the material chain: the ore is collected at the mine and enters a controlled route towards weighing and processing.
NORSE PRINCIPLEThe miner mines. NORSE manages the next stage.
02 · WEIGH
KNOW EXACTLY WHAT HAS ARRIVED.
Under the planned NMC operating model, when the ore reaches the processing area, the incoming material is weighed and registered before processing begins.
The recorded weight becomes one of the basic inputs for the later mass-balance calculation. Knowing how much material entered the process is essential if the final recovery is to be measured and explained transparently.
Both NORSE and the PML holder should therefore know how much material has been received before treatment starts.
NORSE PRINCIPLEMeasure first. Process second.
03 · PROCESS
CRUSH, GRIND AND LIBERATE THE GOLD.
The ore is processed through the selected treatment line. During this stage, the material is crushed, ground and treated according to the process developed for that particular ore.
The objective is to liberate the gold from the surrounding material and recover it through the selected process route.
Sampling is not limited to a single point before or after treatment. Samples are taken continuously during material processing, allowing the ore to be followed as it moves through the system.
NORSE PRINCIPLEThe process should be measurable while it is happening.
04 · SAMPLE & ASSAY
THREE SAMPLES. ONE TRANSPARENT PROCEDURE.
At each defined sampling occasion, three equivalent samples are taken.
Under the planned NMC procedure, one sample is retained as a reference. One sample is provided to the PML holder or ore owner. The third sample is used for fire assay to determine the gold content.
Repeating this procedure during processing gives continuous control of the gold grade in the material and provides both parties with a physical reference sample.
NORSE PRINCIPLEThe miner should be able to verify the material independently.
05 · MASS BALANCE
ACCOUNT FOR THE GOLD.
After processing, the recorded weights, sampling results, assay data and recovered gold are brought together in a mass-balance calculation.
This allows NORSE to compare how much gold is estimated to have entered the process with how much gold has been recovered and what remains in the residual material.
The purpose is to identify any significant unexplained losses and to confirm that the recovery figures are consistent with the material that entered the system.
NORSE PRINCIPLEEvery gram should be accountable.
06 · VERIFY
FROM RECOVERED GOLD TO A DOCUMENTED RESULT.
The recovered gold is brought together, weighed and prepared for final handling. It can then be melted into bars, creating a clear physical result that can be documented against the processing records and the mass balance.
The PML holder can therefore follow the chain from collection at the mine through weighing, processing, sampling, assay and final recovered gold.
Any subsequent sale or transfer of the gold is handled through the applicable authorised Tanzanian framework.
NORSE PRINCIPLEThe result should be visible, measurable and verifiable.
