The store in Mangalia has a sale area of 857 square meters and will sell over 7,800 items.
The store in Slatina has a sale area of 918 square meters.
Billa entered the local market in 1999, when it opened its first store in Bucharest.
German retailer Billa, part of the Rewe group, will open two more stores Thursday, in Mangalia and Slatina, expanding its Romanian network to 70 units, the company said in a statement Tuesday.