ADM Tronics Unlimited, Inc. [ADMT.OB]
Altair Nanotechnologies Inc. [ALTI]
American Pacific Corporation [APFC]

BioFuel Energy Corp. [BIOF]
Braskem S.A. [BAK]

Cabot Corporation [CBT]
Chemspec International Limited [CPC]
Chemtura Corporation [CEM]
China Huaren Organic Products, Inc. [CHRN.OB]
Cryopak Industries Inc. [CYKIF.PK]
Cytec Industries Inc. [CYT]

Ferro Corporation [FOE]
Flamemaster Corporation [FAME.PK]
Flotek Industries, Inc. [FTK]
FutureFuel Corp. [FTFL.OB]

Global Earth Energy, Inc. [GLER.OB]
Green Plains Renewable Energy, Inc. [GPRE]
Gushan Environmental Energy Limited [GU]

H.B. Fuller Company [FUL]
H.E.R.C. Products Incorporated [HERC.PK]
Helix BioMedix, Inc. [HXBM.OB]
Hudson Technologies, Inc. [HDSN]

Innospec Inc. [IOSP]
Isonics Corporation [ISON.PK]

KMG Chemicals, Inc. [KMGB]
Kronos Worldwide, Inc. [KRO]

LaPolla Industries, Inc. [LPAD.OB]

Mace Security International, Inc. [MACE]

Napier Environmental Technologies Inc. [NAITF.PK]
New Generation Biofuels Holdings, Inc. [NGBF]
New Oriental Energy & Chemical Corp. [NOEC]
NewMarket Corporation [NEU]
NoFire Technologies, Inc. [NFTI.OB]

Oil-Dri Corporation of America [ODC]
OM Group, Inc. [OMG]
OMNOVA Solutions Inc. [OMN]

Pacific Ethanol, Inc. [PEIX]
Penford Corporation [PENX]
Polypore International, Inc. [PPO]

Quaker Chemical Corporation [KWR]

Rival Technologies Inc. [RVTI.OB]
Rockwood Holdings, Inc. [ROC]

Sensient Technologies Corporation [SXT]
ShengdaTech, Inc. [SDTH]
Sigma-Aldrich Corporation [SIAL]
Solutia Inc. [SOA]
Synthesis Energy Systems, Inc. [SYMX]
Synthetech, Inc. [NZYM.OB]

The Lubrizol Corporation [LZ]

United Energy Corp. [UNRG.OB]

Verenium Corporation [VRNM]

W. R. Grace & Co. [GRA]
WD-40 Company [WDFC]
Westlake Chemical Corporation [WLK]
Williams Partners L.P. [WPZ]