PKO OFE acquired 5.2% stake in Qumak S.A. (WSE:QMK) on September 20, 2017. As a result of the transaction, PKO OFE increased its stake from 0.99% to 6.16% in Qumak. PKO OFE completed the acquisition of 5.2% stake in Qumak S.A. (WSE:QMK) on September 20, 2017.