Stepan Company actually sells the cocaine to a pharmaceutical company, for use in medicine.

"The plant is the only commercial entity in the USA authorized by the Drug Enforcement Administration to import coca leaves, which come primarily from Peru. Approximately 100 metric tons of dried coca leaf are imported each year. The cocaine-free leaves are sold to The Coca Cola Company, while the cocaine is sold to Mallinckrodt, a pharmaceutical firm, for medicinal purposes." -- http://en.wikipedia.org/wiki/Stepan_Company