Barry Callebaut has begun training members of five farmer cooperatives in the central region of Cameroon to enable them to become independently certified by Rainforest Alliance.
Approximately 1,000 farmers will receive training in the next 12 months.
Nicholas Camu, group manager Cocoa Horizons, said: "We see a great opportunity to start work with farmer organisations and producers in Cameroon who are interested in improving yields and quality by growing cocoa in a sustainable way.
"It's the first time these farmer groups are taking a serious look at the potential benefits of training to achieve certification."
The certification training activities build on the success of Barry Callebaut's own Quality Partner Programme (QPP) with farmer cooperatives, started in Ivory Coast in 2005 and launched in Cameroon in 2010.
Source: Barry Callebaut