May, Clifford D. (1988-07-01). «How Coca-Cola Obtains Its Coca». The New York Times. https://www.nytimes.com/1988/07/01/business/how-coca-cola-obtains-its-coca.html. «A Stepan laboratory in Maywood, N.J., is the nation's only legal commercial importer of coca leaves, which it obtains mainly from Peru and, to a lesser extent, Bolivia. Besides producing the coca flavoring agent for Coca-Cola, Stepan extracts cocaine from the coca leaves, which it sells to Mallinckrodt Inc., a St. Louis pharmaceutical manufacturer that is the only company in the United States licensed to purify the product for medicinal use.»
