Amazon has reached a final deal with EU antitrust regulators over concerns its use of data undermined rivals, in a move that will close two of the most high-profile probes in Brussels.

The US ecommerce group has committed to increasing the visibility of rival products by giving them equal treatment on Amazon’s “buy box,” which generates the majority of purchases on the site. It will also create an alternative featured offer for those buyers where speed of delivery is less important.

The European Commission plans to announce the deal on December 20, according to four people with direct knowledge of the timing. However, they warned the date could still change at the last minute.