Energy Sonne is dedicated to the collection and reuse of oil from restaurants and shops. Based in Mexico they provide services to companies such as McDonalds and Crowne Plaza amongst others. As part of their Corporate and Social Responsibility strategy, having joined Carbon Free Companies, Energy Sonne offer their clients the option of planting a single tree each month to counterbalance the CO2 associated with the collection and refining of their old oil. Energy Sonne donates a tree for every tree donated by their customers.