Planned repairs to an ethylene unit at the Litvinov refinery probably?won't interrupt output of the gas, according to Unipetrol (261 CZK, 0,23%). Company is?working to install a so-called cold box, which has been repaired?following a breakdown in October. According to the updated plan, the?re-installment should be completed by mid-April with no interruption in?the production of ethylene and several days interruption of benzene.?Unipetrol had initially planned to install the device by the end of?March. ??Our view: ?Unipetrol has already mentioned the problems with the blue box in?February and until there is no major interruption in the production we?see the news as neutral.