April 29 (SeeNews) - The blue-chip indices of the Zagreb Stock Exchange (ZSE) ended narrowly mixed on Friday, amidst losses in lender Hrvatska Postanska Banka (HPB) [ZSE:HPB] and food and pharmaceuticals producer Podravka [ZSE:PODR] and gains in shipping company Atlantska Plovidba [ZSE:ATPL], bourse data showed.