He said this at a joint press conference with Ukrainian Prime Minister Volodymyr Groysman in London on July 6, an Ukrinform correspondent reports.
Johnson said that Ukraine had made unique and amazing progress over the past three years, more than in the past 23 years.
He said that there was still a lot to be done in the reform sphere, but, he added, Ukraine is on the right track.
Johnson noted positive changes in public procurement and the introduction of electronic declarations.
He stressed that successful reforms would bring international investors to Ukraine and added that a number of UK companies were already preparing to enter the Ukrainian market.
Ukraine has a big future, he added.