Constellation Announces Board of Directors Change

Luxembourg, August 1st, 2025 – Constellation Oil Services Holding S.A. (“Constellation” or the “Company”) announces today that Nicholas Simon Procopenko was appointed as Company’s director, in accordance with article 10.8 of the Articles. Mr. Procopenko succeeds Mr. Attila Sénig, who served as a Luxembourg Director alongside Mr. Bertrand de Fays pursuant to article 10.1 of the Articles, and has resigned from his position as director of the Board. Mr. Procopenko's mandate shall continue for the remaining duration of Mr. Sénig's original term of office, with the same rights, powers, and obligations as those of any director appointed by the general meeting of shareholders.

Mr. Procopenko is a qualified attorney licensed by the California Bar (inactive), holding a Juris Doctor from Golden Gate University, an LL.M. in Public International Law from the University of Leiden in the Netherlands, and a Bachelor's degree in Political Science from the University of California, Irvine. He brings over 15 years of experience in Luxembourg’s corporate services sector, having co-founded a corporate service provider in 2014. Earlier in his career, Mr. Procopenko practiced as a civil litigation attorney in California. His expertise spans legal advisory, company administration, and compliance, with a strong focus on both client service and internal operations.

About Constellation

Constellation is a market leading provider of offshore oil and gas contract drilling services through its subsidiary Serviços de Petróleo Constellation S.A. (“Serviços de Petróleo Constellation”). With continuous operations since 1981, Serviços de Petróleo Constellation has built an unmatched reputation for excellence in offshore drilling services, obtaining ISO 9001, ISO 14001, ISO 45001, and API Spec Q2 certifications for its quality management, environmental and safety records and systems.