Ukrainian President Volodymyr Zelensky has arrived in the US capital, Washington, for talks.
Meetings with defence companies were initially planned on Thursday, Zelensky announced on social media.
Discussions would also cover additional deliveries of air-defence systems, he said.
Against the backdrop of the energy crisis in Ukraine caused by Russian attacks, meetings with representatives of US energy companies were also planned.
Regarding the talks scheduled for Friday with US President Donald Trump, Zelensky expressed the hope that, similar to the conflict in the Middle East, a language of strength would also lead to success with Russia.
“We can already see that Moscow is rushing to resume dialogue as soon as it hears about Tomahawks [long-range cruise missiles],” Zelensky wrote, referring to the phone call between Trump and Russian President Vladimir Putin before he arrived in Washington.
Ukraine has been defending itself with Western help against a full-scale Russian invasion for over three and a half years.
Kiev expects Washington to approve the sale of long-range Tomahawk cruise missiles. The Kremlin has repeatedly warned the White House against this step.