OB1 OPERATIONAL SITE
The OB1 site is a significant tailings dump accumulated from 60 years of spoil from the Nchanga Open pit ( NOP) of Konkola Copper Mines (KCM) measuring approximately 4Km X 2Km X 80m (640m sqm) KCM is one of the top three Copper producers in Zambia.
Exploration Programmes
Historically 200 Reverse Circulation* (RC) drill holes were executed over an area (SP06) on a grid of 200m X 200m. Where the results were particularly favourable the grid was reduced to a 50m X 50m. Drilling sample evaluations indicated that Zumran’s OB1 site has 230MT of recoverable resources and favourable continuity of mineralization.
OB1 is broken down into specific areas as shown in this map. In the area SP06, resources of 13MT were identified.
This reserve is Zumran’s initial target for extraction and processing, followed by specific areas which have shown attractive indications of surface mineralization. Depth continuity will be supported by further RC drilling. Zumran is conducting confidential conversations with potential Investors starting January 2022 for this exciting opportunity.
*Reverse Circulation drilling, or RC drilling, is a method of drilling which uses dual wall drill rods that consist of an outer drill rod with an inner tube. These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.
*X-Ray Transmission (XRT) technology enables materials to be recognized and separated based on their specific atomic density speeding up the process, increasing quality and reducing cost.