ING Otwarty Fundusz Emerytalny of Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. acquired an additional 0.69% stake in Stelmet S.A. (WSE:STL) on August 2, 2017. ING Otwarty Fundusz Emerytalny increased its stake in Stelmet to 5.05% from 4.36%. ING Otwarty Fundusz Emerytalny of Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. completed the acquisition of an additional 0.69% stake in Stelmet S.A. (WSE:STL) on August 2, 2017.