According to him, the corresponding letters were sent to the heads of the American bank JPMorgan Chase James Dimon and the British financial group HSBC Noel Quinn.
According to TASS, similar notifications were received by the US bank Citigroup and the French financial group Credit Agricole.
In them, Kyiv asked credit organizations to stop financing companies that trade in Russian oil or transport it.
In addition, banks must sell their stakes in Russian oil and gas companies.
Ustenko noted that otherwise the Ministry of Justice of Ukraine will file lawsuits against credit institutions with the ICC after the end of the current conflict.
Earlier, Japanese Foreign Minister Yoshimasa Hayashi said that the country's authorities would cooperate with the neutral states of the G20 group to encourage them to impose sanctions against Russia.
At the same time, the head of European diplomacy, Josep Borrell, said that the countries of the so-called global South represented in the G20 do not share the point of view of the countries of the G7 group (which includes Japan) about the need to condemn Russia and impose sanctions against it.