German grocery retail group Rewe has said it holds 99% of Bon Appetit and has made an offer for the remaining shares in the Swiss supermarket company.

Rewe said it had raised its stake in Bon Appetit to 99% through the purchase of 411,124 shares from Hofer Holding and Hofer Management. The retailer plans to offer CHF60.80 (US$49.0) per share for the remaining shares, reported Reuters.

Bon Appetit shares were valued at CHF61.50 at close on Friday.