On May 26, 2021, H2GS AB closed the transaction. The company has completed the final tranche and raised total of $105 million in the transaction. The transaction included participation from new investors Altor Fund V AB a fund managed by Altor Equity Partners AB, Ane & Robert Maersk Uggla, Ferdinand Bilstein Gmbh + Co.

KG, KIC Innoenergy SE, Exor N.V. (BIT:EXO), FAM, IMAS Foundation, Kingspan Group plc (ISE:KRX), Marcegaglia, Mercedes-Benz AG, Scania AB (publ), SMS Group, AB Stena Metall Finans (Publ), Cristina Stenbeck, Daniel Ek, and Vargas Holding AB.