25 May 2016 Last updated at 04:17 BST
The BBC has found evidence of children working at every stage of the tobacco production process in Indonesia - the world's fifth-largest producer.
In a report released on Wednesday, Human Rights Watch claims that thousands of children are working in hazardous conditions in the tobacco industry.
Rebecca Henschke reports from the island of Lombok.
Some of the world's biggest tobacco companies are buying their products from farms that employ child workers.