On 22 June 2022, the EU’s General Court (“GC”) fully dismissed thyssenkrupp’s appeal against the European Commission’s (“Commission”) decision to block its proposed joint venture (“JV”) with Tata Steel in 2019. This is the first time that the GC has considered the prohibition of a “gap” case under the EU Merger Regulation (“EUMR”) since it annulled the Commission’s prohibition of CK Hutchison’s proposed acquisition of Telefónica UK (O2) in 2020 (“CK Hutchison”) (see our previous blog post here). A “gap” case is a merger in an oligopolistic market that does not result in the creation or strengthening of an individual or collective dominant position. Rather, it risks causing a “significant impediment to effective competition”. This result may indicate a return to a more traditional approach by the GC as regards “gap” cases than that demonstrated in the CK Hutchison judgment. The judgment also provides helpful guidance on the interpretation of the EUMR and other legal instruments (such as the Market Definition Notice and the Notice on Remedies).