Ukraine's richest man, and former ally of ousted president Victor Yanukovich, has exclusively told ITV News that he believes Ukraine should remain a unified nation and should not relinquish any part of the country to Russia.
In this first interview since the crisis in Crimea, Rinat Akhmetov urged Vladimir Putin to respect Ukraine's sovereignty and urged all those involved to behave in a democratic way.
Mr Akhmetov, who rarely gives interviews, added that despite the events of recent months, Ukraine, Russia and the European Union could prosper in partnership.
ITV News' Europe Correspondent Emma Murphy reports:
Akhmetov, 47, is the owner of Ukraine's largest business holding and controls nearly half of the country's coal, steel, ore and thermoelectricity sectors.
He is also the owner and president of the Ukrainian football club Shakhtar Donetsk.
As one of the most influential men in the eastern part of the country, he insists that there should be no separation between East and West despite the current divide.
"Ukraine is going through not an easy time and I am sure that Ukraine will become stronger after going through this difficult situation," Mr Akhmetov told ITV News' Europe Correspondent Emma Murphy.
"I always wanted Ukraine to be independent, unified and strong. I am sure that this journey we will go through this journey with dignity and our heads held high."
Pro-Russia supporters and Russian forces are currently occupying the Crimean peninsula, and there have been tense exchanges between Ukrainian and Russian troops.
Mr Akhmetov said Russia remained Ukraine's "friend and strategical partner", and the situation between the two countries could be resolved in a "peaceful and democratic way".
Efforts to foster talks between Russia and Ukraine have proved unsuccessful so far.
The United Nations' special envoy Robert Serry was forced to shelter in a coffee shop after being "severely threatened" in Crimea yesterday, in an incident which seemingly harmed diplomatic efforts.
MPs in Crimea voted unanimously to become part of Russia and the government have set a referendum for 10 days time where the region's citizens will be able to make the choice.
Ukraine's prime minister called the parliament's decision illegitimate and said the planned referendum had no legal grounds.
Mr Akhmetov said Ukraine had to remain a "strong, independent and unified country" as he dismissed calls from some citizens suggesting that eastern Ukraine should be independent or move further towards the Russian Federation.
Asked what he would say to Russian president Vladimir Putin, the tycoon said: