The first bank in Poland implemented blockchain technology. The cooperation between PKO Bank Polski and the British company Coinfirm as well as the National Clearing House will allow the bank's clients to receive changes to the product regulations electronically. It is the largest application of blockchain technology in the banking sector in Europe.
more info: http://media.pkobp.pl/press-office/press-releases/about-bank/trudatum-coinfirms-document-verification-platform-used-to-to-deliver-new-terms-and-conditions -to-over-five-million-customers-of-pko-bank-Polish-the-biggest-financial-institution-in-central-eastern-europe /