New Britain Palm Oil has signed a $100m deal to supply Ferrero, the Italian confectionery maker, with sustainable palm oil as food producers come under pressure to source commodities ethically and to stop using hydrogenated fats.

Ferrero, whose brands include Ferrero Rocher, Nutella and Tic-Tac, stopped using hydrogenated fats two years ago to assuage consumers’ health concerns and now uses palm oil instead.