Investigación del carbón

Principales actores: Alstom SA, KBR, Inc., Shell PLC, General Electric Company, Siemens Energy AG

Principales actores: Bloomfield Collieries Pty Ltd, BHP Group Ltd, Centennial Coal Company Ltd, Yancoal Australia Ltd, Whitehaven Coal Limited

Principales actores: China Coal Energy Group Co., Ltd., China Shenhua Energy Company Limited, China Power International Development Limited, Yanzhou Coal Mining Company Limited, Huadian Power International Corporation Limited

Principales actores: China Coal Energy Group Co., Ltd., China Shenhua Energy Co. Ltd, Huadian Power International Corporation, NTPC Ltd, Jindal Steel & Power Ltd

Principales actores: Chiyoda Corp, Itochu Corp, Mitsubishi Heavy Industries Ltd, Toshiba Corp, Electric Power Development Co., Ltd.

Principales actores: Coal India Limited, JSW Energy Ltd, NTPC Ltd, Jindal Steel & Power Ltd, Adani Power Limited

Principales actores: PT Adaro Energy Tbk, PT Bumi Resources Tbk, PT Bayan Resources Tbk, PT Indo Tambangraya Megah Tbk, PT Bukit Asam Tbk

Principales actores: Peabody Energy Corp, Arch Coal Inc, Alliance Resource Partners, LP, NACCO Industries, Inc., Contura Energy Inc

Principales actores: Peabody Energy Corp, Teck Resources Limited, Conuma Coal Resources Limited, Westmoreland Mining LLC, Dodd's Coal Mining Company Ltd.

Principales actores: Suek AG, Reino Unido Kuzbassrazrezugol OAO, Mitteldeutsche Braunkohlengesellschaft mbH (MIBRAG), Lubelski Wegiel Bogdanka SA, Jastrzębska Spółka Węglowa SA