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Argentina: unions fight IMF and Basic Law that favors management and limits union action
(www.plenglish.com)
Community for union related stuff, with focus on the IWW.
A good telegram group to join (I do not own it, I don't take responsibility for what you'll find there): https://t.me/AnarchoSyndicat
And int he spirit of open source:
https://matrix.to/#/%23anarchycommunism:matrix.org