Handbook should have the info or other than that a Kia dealer.
Re antifreeze I can see you are not in the UK and different markets may have a different spec so to be sure its best to get local info.
Brake fluid is normally DOT4 these days. DOT 5 may seem like a newer spec but to confuse matter there is also DOT 5.1 and there can be compatibility issues with any DOT 5 spec. There is normally info on the master cylinder.