Pyatigorsk is a city in the Caucasian Mountains in the southernmost part of Russia. The area has been known for its mineral springs for centuries. The soft drink manufacturer A.Yuna (А.ЮНА) was established in Pyatigorsk in 1998 and makes a number of different mineral waters, soft drinks, and juices under several different brands.
Their soft drink line is called Dassi and was introduced in 2016. A cola was added to the line around 2019-2020.
Based on reviews I’ve seen, you probably want to avoid it. I still want it in my collection, though.