ZAGREB (Croatia), January 21 (SeeNews) -Â Croatian tourism company Valamar Riviera [ZSE:RIVP] said it is revising up its estimated earnings before interest, taxes, depreciation and amortisation (EBITDA) for 2019 to 765-770 million kuna ($114-115 million/103-104 million euro) from the previously expected 750-760 million kuna, based on preliminary unrevised consolidated figures.