Considering they absolutely love any support, I have no doubt they'll be happy to hear they have support from the Czech Republic
Yeah, money is a real issue, but the Brazilian snow sports federation is (according to the 2 biathletes I know) one of the best sports federations in South America, so they're helping as much as they can. By the way, for years I had the thought in my mind of "One day I will spend some of the money I won with sports betting to help some athletes from small nations"
Now I know Brazil is not small, but of course in biathlon they are. Considering that (and mostly the fact that they are close friends of mine by now) I'm sponsoring some relatively smaller things. For example, I'm paying the gym membership for one of them so for the first time she can train in the gym all off-season instead of only in the few weeks in European training camps. This leads to a summer of 2 trainings per day (one rollerski training + one gym training session), which doubles last summer's training effort and should very much increase next season's results.
Nevertheless it's still a real issue, mostly because finding sponsors in Brazil for biathlon is nearly impossible (I mean...biathlon? Snow? What? ).