Since then (by 1929), Coca-Cola has used a cocaine-free coca leaf extract. Today, that extract is prepared at a Stepan Company plant in Maywood, New Jersey, the only manufacturing plant authorized by the federal government to import and process coca leaves, which it obtains from Peru and Bolivia. Stepan Company extracts cocaine from the coca leaves, which it then sells to Mallinckrodt, the only company in the United States licensed to purify cocaine for medicinal use.
Fun fact, they still have coca leaves.
Wikipedia: