Don't get us wrong and sorry for the late reply. The ppl on this forum try their best to help tourists with information they need about Mauritius. Investing in Mauritius is another issue not many people know about...neither do I...
But, I've had a read through our government portal for potential investors and have come up with this website which has got valuable information but a rather confusing website.
The information that concerns you should be right at the bottom paragraph.
If you go on the .com website, you might find more information.