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"You implemented ground-breaking new electronic asset declaration system to fight corruption, to ensure that officials cannot leverage their political position for personal gain," Biden said in a statement January 16, an UNIAN correspondent reported from a joint briefing with President Petro Poroshenko.

Read alsoBiden urges Ukraine to meet IMF requirements, continue reform in energy sectorHe noted that Ukraine's National Anti-Corruption Bureau and the Special Anti-Corruption Prosecutor "are providing and proving their impact when they have the resources".

Read alsoUkrainian political commitments under Minsk deal should only be implemented after "Russian violence stops" - Biden"And it's imperative that you continue to strengthen all of your anti-corruption institutions to root out those who would return Ukraine to rule by cronyism and kleptocracy," Joe Biden said.