BLDP

Ballard Power Systems, Inc.

Ballard Power Systems, Inc.

British Columbia, Canada

NASDAQ

BE

Bloom Energy Corp

Bloom Energy Corp.

California

NYSE

CHGI

China Carbon Graphite Group Inc

China Carbon Graphite Group, Inc.

China

NASDAQ

EAF

GrafTech International Ltd.

GrafTech International Ltd.

Ohio

NYSE

HOLI

HollySys Automation Technologies Ltd.

HollySys Automation Technologies Ltd.

China

NASDAQ

IPWR

Ideal Power, Inc.

Ideal Power, Inc.

Texas

NASDAQ

PLUG

Plug Power, Inc.

Plug Power, Inc.

New York

NASDAQ

SCCI

Sci Engineered Materials Inc

SCI Engineered Materials, Inc.

Ohio

OTC

SLNG

Stabilis Energy, Inc.

Stabilis Energy, Inc.

Texas

NASDAQ

THR

Thermon Group Holdings, Inc.

Thermon Group Holdings, Inc.

Texas

NYSE

WWD

Woodward, Inc.

Woodward, Inc.

Colorado

NASDAQ