LuckyGunner has published an article about Tula and Ulyanovsk Ammunition (branded as TulaAmmo in the US market). The article is very interesting and well worth reading.
I was very surprised to learn that Tula is 100% privately owned. I had always assumed it was part of the Russian government. Another interesting fact is that Tula plan on switching to steel-free bullets for the US market so it can be used at ranges that ban steel-core ammunition.