Star Diamond Corporation provided this technical update on the opportunity for Carbon capture using processed kimberlite from the Star ­ Orion South Diamond Project. This process is known as Carbon mineralization and preliminary studies referenced below indicate that kimberlite waste rock from these kimberlites may indeed function as a significant sink of atmospheric CO2. The university laboratories were provided with fifteen samples, which include six core samples of Early Joli Fou kimberlite breccia, Early Joli Fou pyroclastic kimberlite and country rock Shale.

There are also samples of processed products including fine, processed kimberlite from the fines management area ("FMA") and processed kimberlite lights from the dense media separator. The six core samples were initially crushed and all 15 samples were pulverized in an agate mill. X-ray diffraction was used to determine the quantitative mineralogy of the samples.

Thirteen samples were shown to contain significant proportions of the Serpentine Group mineral Lizardite, which is reactive with CO2. Under specific laboratory conditions the maximum CO2 mineralization potential, expressed as kilograms of CO2 that reacts with the Lizardite, per tonne of material sampled, was determined for each of the Lizardite bearing samples. These initial results illustrate that there is potential for the Lizardite in the processed kimberlite, from the Star and Orion South Kimberlites, to capture significant quantities of atmospheric CO2, which can have a positive effect on the lowering of the carbon footprint of a future mine.

Additional analyses need to be conducted on larger samples with the aim of developing carbon capture methods that can be incorporated in a future diamond mine.