Chart Industries, Inc.
CECO Environmental Corp.
Ferroglobe PLC
Calumet Specialty Products Partners LP
TAT Technologies Ltd.
CIRCOR International, Inc.
Advanced Emissions Solutions, Inc.
EVI Industries, Inc.
Wrap Technologies, Inc.
Highway Holdings Ltd.
General Electric Co.
John Bean Technologies Corp.
Cabot Microelectronics Corp.
Rockwell Automation, Inc.
Kraton Corp.
Parker-Hannifin Corp.
Colfax Corp.
Lydall, Inc.
Textron, Inc.
Mueller Water Products, Inc.
BioHiTech Global, Inc.
IDEX Corp.
Welbilt, Inc.
Minerals Technologies, Inc.
Roper Technologies, Inc.
Hebron Technology Co., Ltd.
ITT, Inc.
Rexnord Corp.
Sun Hydraulics Corp.
Oil-Dri Corp. of America
CSW Industrials, Inc.
Omega Flex, Inc.
Proto Labs, Inc.
Chase Corp.
P&F Industries, Inc.
The Chemours Co.
Core Molding Technologies, Inc.
Northern Technologies International Corp.
Enviva Partners LP
Luxfer Holdings Plc