Speaking during his visit to Athens on Friday, the premier told the STT that the Greek economy was showing positive signs, adding that a cautious economic growth was about to begin.
Katainen also said the interest rates on the Greek debt were falling, although they were still at a very high level.
He pointed out that there were undeniably positive things that have come from the harsh adjustment measures that Greece is going through.
He reminded that Greek's budget adjustments have started to bear fruits owing to the fact that they have been even more harsh compared to which Finland saw during the 90s recession.
The prime minister however reaffirmed that Greece still needed structural reforms.