Thank you david_42 and philbrasil for taking some of your valuable time to reply.
Philbrasil, welcome ( bem vindo ) on the homebrewtalk forum ( I see it's your first post ).
As far as I know, the Curitiba homebrewers group doesn't have its own website. One member had a blog 5 months ago but it's not active anymore.
2 members of the group are aware that I started this thread, so they might post a reply.
Paulo ( ex masterbrewer for inBev ) , the guy who has malt dust all over his clothes, on the 1st picture has a website ( all in Portuguese ) .
Here is the link:
http://cervejeiro.com/
It's not difficult to find good basic brewing ingredients in Brasil such as malts and hops, except for liquid yeast.
Homebrewing equipment ( such as false bottom, bazooka ) is harder to get.
While there , I tried to find some Gott cooler but it was impossible.
But those guys can improvise: one of them made a stirplate out of an old record player
Jacques
P.S. philbrasil, what part of Brasil are you from ?