Boruta-Zachem S.A. (WSE:BRU) sold 76% stake in Boruta-Zachem Biochemia Sp. z o.o. on June 9, 2016. Under the transaction, Boruta-Zachem S.A. sold 76 shares. Boruta-Zachem S.A. (WSE:BRU) completed the sale of 76% stake in Boruta-Zachem Biochemia Sp. z o.o. on June 9, 2016.