|
APD
|
Air Products and Chemicals, Inc.
|
US
|
NYSE
|
|
AQMS
|
Aqua Metals, Inc.
|
US
|
NASDAQ
|
|
ATI
|
Allegheny Technologies Incorporated
|
US
|
NYSE
|
|
BE
|
Bloom Energy Corporation
|
US
|
NYSE
|
|
CIR
|
CIRCOR International, Inc.
|
US
|
NYSE
|
|
CLIR
|
ClearSign Combustion Corporation
|
US
|
NASDAQ
|
|
ECL
|
Ecolab Inc.
|
US
|
NYSE
|
|
FMC
|
FMC Corporation
|
US
|
NYSE
|
|
GTLS
|
Chart Industries, Inc.
|
US
|
NYSE
|
|
HAYN
|
Haynes International, Inc.
|
US
|
NASDAQ
|
|
HON
|
Honeywell International Inc.
|
US
|
NASDAQ
|
|
HWKN
|
Hawkins, Inc.
|
US
|
NASDAQ
|
|
IEX
|
IDEX Corporation
|
US
|
NYSE
|
|
NPO
|
Enpro Industries Inc
|
US
|
NYSE
|
|
THR
|
Thermon Group Holdings, Inc.
|
US
|
NYSE
|
|
TRNS
|
Transcat, Inc.
|
US
|
NASDAQ
|
|
USAP
|
Universal Stainless & Alloy Products, Inc.
|
US
|
NASDAQ
|
|
VTNR
|
Vertex Energy, Inc
|
US
|
NASDAQ
|
|
WLK
|
Westlake Chemical Corporation
|
US
|
NYSE
|
|
ATLPF
|
Atlantic Power Corp.
|
US
|
OTC
|