Engineering & Mining Journal

NOV 2017

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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NEWS-LEADING DEVELOPMENTS NOVEMBER 2017 • E&MJ 5 2017 were $546/oz, which was 5% lower compared to $575/oz in the prior-year pe- riod. Both production and total cash costs in the third quarter of 2017 were positively affected by record quarterly production. Boliden's Production Suffers In its recent earnings report, Boliden said the third quarter could be characterized by extensive maintenance in the mines and other production disturbances. At the same time, they announced that the com- pany's president and CEO, Lennart Evrell, will resign halfway through 2018 and they are starting the succession program. "Maintenance work in all of the mines, coupled with production disturbances, re- sulted in production levels falling from the very high levels seen in the previous quar- ter," Evrell said. "Garpenberg had problems with rock stability in one production area, necessitating the extraction of ore from areas with lower grades. On the plus side, Kevitsa is continuing to perform strongly." Boliden saw its production decline steeply from a very strong second quar- ter. Aitik's production was limited by low crusher availability. Garpenberg's milled volume was high in spite of the mainte- nance work carried out on the mills. The re-planning of production areas, however, resulted in lower grades during the quar- ter. Production disturbances continued in the Boliden Area, and metal production consequently fell from the previous quar- ter's levels. Kevitsa's milled volume and copper production achieved record highs. Process disturbances at the Kokkola and Odda zinc smelters had a negative effect on production, while Rönnskär's copper and lead production remained on par with the previous quarter, and Harja- valta's processes were stable. Regarding Evrell's resignation, Chair- man Anders Ullberg said, "It is always sad when a successful and appreciated CEO decides to resign, but the board un- derstands that Lennart wants to round off his career with other assignments. Now it is important to secure a good succession in Boliden without losing momentum." Implats Acquiring 15% Interest in Waterberg Project Impala Platinum (Implats) has entered into definitive agreements with Platinum Group Metals Ltd. (PTM), Japan Oil, Gas and Metals National Corp. (JOGMEC), and Mnombo Wethu Consultants to acquire a During the expansion, miners assemble six new four-rotor mining machines underground. PotashCorp has completed an expansion at its Rocanville potash mine in south- east Saskatchewan, more than doubling nameplate capacity from 3 million met- ric tons per year (mt/y) to 6.5 million mt/y and creating the world's largest potash mine. The $3 billion project in- cluded the first new mine shaft built in Saskatchewan since 1979, a new mill, a new 500,000-mt storage facility, new rail and rail loadout equipment, and conversion of the existing service shaft, used for people and materials, to a sec- ond production shaft, for bringing ore out of the mine. Other work completed during the ex- pansion included assembly of six new four-rotor mining machines underground and a new hoist, skips, and motors for the converted shaft. Approximately 130 kilometers (km) of conveyor belts were in- stalled underground. The new Scissors Creek shaft reaches a depth of 1,119 m and passes through sev- eral water-bearing geological formations. The new mill has capacity to process 1,100 mt/h. Combined capacity of the new and the old mills is 2,400 mt/y. Approximately 300 km of electrical ca- ble run through the newly expanded fa- cility. The workforce has doubled to more than 750. The standard and granular potash produced at Rocanville is used in fertil- izer and agricultural products. Product is shipped via the Canadian Pacific and Canadian National railways to centers throughout North America and to ports for delivery offshore. The expanded Rocanville mine was officially opened on October 12 during a celebratory event held in the office build- ing at the new Scissors Creek site. The event was attended by more than 300 people, including local and provincial elected officials, suppliers, employees of the Rocanville operation, and several members of PotashCorp's Board of Direc- tors and senior leadership team. "We are very proud of our employees for their accomplishments here at Ro- canville — they were truly dedicated to working hard and working safely," said PotashCorp President and CEO Jochen Tilk. "As a result, this mine is poised to be a key part of our company's future for years to come. We are also grateful to our contractors for their significant contribu- tions during this extensive project. "By enhancing capacity at Rocanville, our lowest-cost operation, we have im- proved our competitive position and are ready to respond to the world's increasing need for potash." Rocanville Expansion Creates World's Largest Potash Mine

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