US Secretary of State Hillary Clinton will unveil the Trafficking in
Persons Report for 2012 at a ceremony in Washington on Tuesday evening
Cambodia time, the US embassy said.
A statement said the report would cover the efforts of 186 countries and territories to combat modern slavery.
Clinton will also honor Cambodian Prum Vannak Anan and others "whose personal efforts have made an extraordinary difference in the global fight against modern slavery," it said.