The following kashrus information is from the OU posted on September 4, 2015.
Freestyle Machines of the Coca Cola company enable the consumer to mix a variety of soft drink flavors to his/her own personal choice. All flavors available in the freestyle machines in the United States and Canada are products of the Coca Cola Company. We confirm that they are all produced under the certification of the Orthodox Union and are kosher and pareve.
The previous item can be cited with the URL: https://www.kashrut.com/NewCerts/?alert=N0202