According to an article published on January 22, 2015 on Reuters, “Wilmar International Ltd. , the world’s largest palm oil processor, opened its supply chains to outside scrutiny on Thursday in what environmentalists called an unprecedented step to help safeguard tropical forests.
Singapore-based Wilmar said it would give outsiders, from customers to environmentalists worried about deforestation, access to online maps showing where it buys palm oil at more than 800 mills in Indonesia and Malaysia.”
You can read the article on the Reuters internet site.