De Beers and the NWT government signed an agreement in May 2004. According to the agreement, 10% of diamond production is used by the NWT government. In May 2004, the company entered into an environmental agreement with the Canadian government and Aboriginal primary community organizations. As part of the agreement, the Snap Lake Environmental Monitoring Agency was created to monitor the implementation of De Beers` environmental agreement and environmental performance. . In order to ensure the identity or quality of production by the Snap Lake mine, the government has the right to monitor the assessment process in Yellowknife and the process of selling 10% of Snap Lake diamonds. Mining methods at the bottom are used to extract the Kimberlit dam. The main entrance to the mine is 5m wide and 4.5m high. Low profile exploration equipment is used to facilitate access to areas with limited space and small spaces. A modified space and column method is used to extract ore. The ore is extracted, so that the layers or columns of ore create distinct segments. The deposit is transported underground and the crushed ore is loaded onto an underground conveyor belt.
The blender is transported to a process system on the surface. In 2008, De Beers decided to restructure the mine and facilitate production due to the economic downturn. Diamonds extracted from the process facility are sent to De Beers` assessment facility in Yellowknife. They are then exported for sale to the commercial enterprise in London. In September 2009, the company announced the planned cancellation in December of the four-week winter production shutdown scheduled for December. On April 28, 2010, De Beers announced that it had spent nearly $1 billion on NWT`s operations, or 70% of the company`s investments in the mine. The process facility was commissioned in August 2007 and the diamonds were recovered the same month. Diamond exploration in the mine began in 1955 by Winspear Resource. In 1997, Winspear discovered the Kimberlit diamond depot. The processed kimberlit is drained, mixed with cement and channeled under the surface to fill the empty space created by the ore mined. The rest of the transformed kimberlit is deposited at North Pile, a bermed process in the Kimberlit containment zone. De Beers acquired Winspear in 2000 and continued to work in the mine to determine the size, thickness and depth of the Kimberlit deposit.
Production began in 2008. Diamonds for sale under this agreement will be supplied to government-approved local cutting and polishing plants as producers and meeting the diamond trading company`s customer selection criteria. This supports the NWT`s secondary industry. Construction of the Snap Lake project began in 2005 with an investment of $975 million. As of April 2010, $1.4 billion had been spent on the construction and operation of the mine. In February 2009, the company announced the temporary shutdown of the mine as part of an organizational restructuring. Construction and commissioning of the underground grinding and extraction system was completed in 2008. Commercial production began in 2008 with a production rate of 3,150 t/d.
In the first year of construction, most of the mine`s access routes were completed. The start cell parometer dikes and the partial pond for the north post and all soil excavation utilities have also been completed. Snap Lake Mine is located 220 km northeast of Yellowknife in Canada`s Northwest Territories. De Beers has its own In February 2007, the company and the government confirmed the agreement to support the secondary diamond industry in NWT.