Hager's experience includes:

• A leading international manufacturer of staellite equipment against a Russian company in proceedings before the Berlin Higher Regional Court to determine the admissibility of the arbitral proceedings. The dispute arises out of the breach of the arbitration agreement between the parties, as the Russian company had initiated proceedings before Russian state courts;
• A leading pharmaceutial company in an award annulment proceeding before the Bavarian Higher Regional Court;
• A leading Japanese manufacturer in a post-M&A DIS arbitration initiated against a purchaser of a divested business. The arbitration involves multiple contractual claims and counterclaims intertwined with European antitrust issues and multiple European jurisdictions;
• A leading pharmaceutical company in a post-M&A DIS arbitration relating to an earn out mechanism tied to the development of a machine learning technology used for personalized cancer treatments;
• The major Austrian construction company Strabag SE and its joint venture partner in an ICSID arbitration against the Federal Republic of Germany under the Energy Charter Treaty. The claims arise in connection with changes to Germany's regulatory framework applicable to the offshore wind energy sector.
• The German financial services provider Portigon AG (formerly WestLB) in an ICSID arbitration brought under the Energy Charter Treaty against the Kingdom of Spain. the dispute arises out of Spain's changes to its feed-in-tariff regime for renwable energy.