KIEV, June 4 – Kiev Economic Court has voided invalid deals on the purchase of 9.96% and 8.36% stakes in UkrTatNafta (the Kremenchuk oil refinery in Poltava region) by SeaGroup International Inc. (the US) and AmRuz Trading AG (Switzerland).

"The rulings were issued on May 28 and June 2," the State Property Fund told Interfax-Ukraine on Tuesday.