I only know this from hearsay online - but I think Aldi has a decent US presence (I'd be interested if it's Süd or Nord that managed to branch out there, or both 🤔), and I heard of Lidl existing in the US as well.
As for Asia, Australia, Latin America, Canada, Africa, India, the middle East.... I never heard anything, but it would be interesting to hear if someone has some experience there.
süd operates as aldi in the u.s. nord bought trader joes in '79. their target markets are a little different with aldi being more mainstream including smaller cities; while trader joes tends to stay in higher-income neighborhoods of metro areas and larger cities.
Homeplus in South Korea at least used to be a Tesco thing and you could get Tesco-branded products there. Homeplus still exists, but I'm not sure if it's still linked to Tesco any more.
The CEO of the Metro supermarket chain confirmed plans to continue business in Russia. The National Agency for Prevention of Corruption included Metro AG in the list of international war sponsors.