Open Joint Stock Company Protek (MISX:PRTK) sold 51% stake in Firma Koman Zao on December 23, 2016. Post-transaction, Open Joint Stock Company Protek's holding reduced to 49% from 100% in the Firma Koman Zao. Open Joint Stock Company Protek (MISX:PRTK) completed the sale of 51% stake in Firma Koman Zao on December 23, 2016.