Not all personnel in the Zakarpattia factory were aware of the winter sportswear operation, but those that knew of it were reportedly told to keep it a secret.
No, they just need money and Ukraine is completely fucked economically right now. Also Ukrainian government is still cooperating with Russia in many ways. For example, Russian gas still flows through pipes in Ukraine, Russia still pays money for transit and Ukraine is happy about it.
It may surprise you but inter nation deals during war are not at all uncommon. While we were bombing Berlin we were also selling them shit they needed and couldn't get without us in exchange for shit we needed and couldn't get without them.