American Electric Power Company
China Huaneng Group Co. Ltd. Dominion Energy Solutions Inc. Duke Energy Corporation
Eskom Holdings SOC Ltd. Jindal India Thermal Power Limited
NTPC Limited
RWE Aktiengesellschaft
STEAG GmbH (Ksbg Kommunale Beteiligungsgesellschaft Gmbh & Co. Kg) and Tenaga Nasional Berhad