Heritage Cases

• Phase 1- Desktop Study:  Literature Review Before any field work can commence, a desktop study will be conducted to obtain comprehensive knowledge of the regional geology of the drainage basin on which the proposed prospecting area is located, the constituent lithologies of the gravel being prospected for, the geomorphic and climatic factors which have affected the exploration area, the type of deposit to be sought and any post-depositional processes which may have affected the alluvial deposits being considered for exploration. This comprehensive information will be obtained through the collection and interpretation of all available data such as aerial photos, orthophotos, aeromagnetic data, topo-cadastral maps, geological maps, historic exploration programmes and any other published literature and maps relating to alluvial diamond deposits in the Koingnaas area. All the information compiled during the desktop study will assist in constructing a concise, comprehensive regional model upon which to base any alluvial diamond exploration program on the proposed prospecting area. • Phase 2- Invasive prospecting (Drilling) A site visit will be conducted to verify the desktop study findings. • Phase 3- Geomorphological Studies Geomorphological studies will be conducted to determine whether the palaeo-river straddles the proposed prospecting area, and to determine the direction of its flow.. • Phase 4- Geophysical Survey The Electrical Resistivity method will be used to confirm the presence of gravel deposits in the river channel. • Phase 5 - Reverse Circulation (RC) Drilling And Pitting: Reverse circulation percussion drilling will be conducted to delineate the deposit. The exact number of boreholes and their locations will depend on the result of Phase 1: Desktop study, Phase 2: Site visit, Phase 3: Geomorphological studies and Phase 4: Geophysical Survey. For budget purposes, 200 RC holes will be drilled. The locations of the boreholes will be communicated to the DMR once finalized. Pitting The exact number of pits and their locations will depend on the result of RC drilling. The pits are likely to be dug in the vicinity of the paleao river channel. Should the pitting results prove negative, the pits will be backfilled, and should the results prove positive, they will be left open to cater for bulk sampling. A Section 20 application will be submitted should bulk sampling be required. • Phase 6 – Pre-feasibility Study After RC drilling and pitting and possibly after bulk sampling, should the first-pass recovery tests from RC drilling and pitting samples prove positive for diamonds, detailed test work program (bulk sampling) will be considered to assist in making a final project decision. Should programme prove to be successful; a pre-feasibility study will be conducted to determine the viability of a mining operation prior to applying for a mining right application. Pre-feasibility studies usually include a range of options for the technical and economic aspects of a project and are used to justify continued exploration, to complete the required project permitting or to attract a joint venture partner. The aim of a pre-feasibility study is to select the preferred option (base case scenario) for the project development. This base case scenario is then developed in enough detail to underpin decisions to devote any additional funds required to move the project through subsequent stages of development and to a final feasibility study.