PPHU Martech-Plus Marcin Mistarz Sp.J. acquired 83.49% stake in Plasma System S.A. (WSE:PSM) from Plasma MBO Sp. z o.o. on July 8, 2019. PPHU Martech-Plus Marcin Mistarz Sp.J. completed the acquisition of 83.49% stake in Plasma System S.A. (WSE:PSM) from Plasma MBO Sp. z o.o. on July 8, 2019.