Information regarding participation in Harbour Energy plc

BASF, via its subsidiary BASF Handels- und Exportgesellchaft mbH, holds a participation in Harbour Energy plc. As the company has communicated on various occasions, its participation in Harbour Energy is considered a financial investment and it is BASF’s strategy to exit it over time being mindful of value. Against this background, the following announcement is made: 

BASF Handels- und Exportgesellschaft mit beschränkter Haftung (“BASF”) announces that it is re-commencing sales of shares in Harbour Energy plc (“Harbour”) pursuant to an existing on-market trading plan that is independently managed by a broker on behalf of BASF (the “Trading Plan”). The Trading Plan was suspended from the morning of March 27, 2026, upon pricing of a secondary placing of Harbour shares by BASF (the “Placing”). To enable the Trading Plan to re-commence, Morgan Stanley Europe SE (“Morgan Stanley”) has agreed to waive the 45-day lock-up governing any on-market sale of shares in Harbour by BASF, which was imposed following closing of the Placing on March 31, 2026.