Ukrainian President Volodymyr Zelensky said around 15 countries would attend the talks, along with representatives from the European Union and NATO, with a US delegation joining via video link.
Leaders from the so-called coalition of the willing are expected to convene in France next week after Saturday's talks.
On Tuesday, Poland's prime minister Donald Tusk took part in high-level remote talks on ending Russia's war in Ukraine, following which he said that peace in neighbouring Ukraine may be near.
He opined that a peace agreement could be reached within weeks rather than months or years, citing US declarations that Washington would offer security guarantees for Ukraine following a settlement.
The latest peace push comes after Zelensky announced in his New Year's Eve address that the US-brokered plan was "90 percent" ready, but cautioned that important territorial issues remain.
Russia occupies around a fifth of Ukraine and has hit its smaller neighbour with an almost daily barrage of missiles and drones that have killed thousands of civilians and displaced millions.
Kyiv has repeatedly said Russia is not interested in peace and is deliberately trying to sabotage diplomatic efforts in order to seize more Ukrainian territory.
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Source: PAP, AFP