The United States said on Wednesday it has banned the import of palm oil from FGV Holdings over allegations that it used forced labour in the production process.

The world's largest crude palm oil producer has long faced allegations from some international NGOs that foreign workers at FGV plantations work in abusive conditions.

The US Customs and Border Protection (CBP) said the ban is the result of a year-long investigation that revealed forced labour indicators including abuse of the vulnerable, deception, physical and sexual violence, intimidation and threats, retention of identity documents, among others.

The investigation also raised concerns that forced child labour is potentially being used in FGV’s palm oil production process, it said in a statement, adding that the ban will come into effect immediately.

"The use of forced labour in the production of such a ubiquitous product allows companies to profit from the abuse of vulnerable workers," said CBP's trade office executive assistant commissioner Brenda Smith. 

Smith also said consumer goods company Procter & Gamble, with which FGV has a joint venture, should take note of the ban.

"I can't specifically comment on the joint venture with Procter & Gamble, but if Procter & Gamble is an importer, this withhold release order is something they should take seriously," she said.

The CBP will issue a "withhold release order", which will allow it to detain shipments based on suspicion of forced labour involvement under longstanding US laws aimed at combating human trafficking, child labour and other human rights abuses.

- Reuters