Lithuanian citizen living and doing business on the Reunion Island? How about an internet mail order business from there? Is it reasonably possible?
closed as unclear what you're asking by Karlson, Gagravarr, Dan Getz, Gala, Gayot Fow May 2 '15 at 17:50
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Have you ever visited Réunion Island? Internet is not an issue here in Réunion, but have you already checked out the cost of sending parcels from Réunion via speed couriers and La Poste? You'll find it's more expensive from Réunion than from mainland France or Lithuania. And where will what you'll be sending come from? Will you be making it yourself or importing it? Where will the items and/or raw material come from? And for example from Réunion you can't post anything non-urgent abroad via sea any more, it has to go via airmail whether you like it or not. Price lists for all this are available online or on request if you e-mail those concerned, but this brings us to another part of your question: language. You don't say whether you don't speak French or whether you speak it but just not as a native speaker. If you don't speak French you will have a hard time getting by professionally as everything here is in French. If you do speak fluent French, even with a (understandable) foreign accent, you'll be fine.
Legally speaking, Réunion is part of the European Union. It's out of the Schengen area, which makes a difference for citizens from non-EU countries but apart from that all the usual rules apply, including the freedom of establishment. Just as in mainland France, you are expected to conduct all official business in French but it's not especially difficult to get set-up if you do.
Beyond that, as @champacs explained, shipping is generally expensive so it does not seem to be a very attractive base of operation for a mail-order business, all other things being equal.