H Plus R Envr. Engr. Co., Ltd. - TAIWAN

H&T Stahlbaufrt.&Vetriebs GmbH - GERMANY

Hai Ho Environ.Enterprises Co. - TAIWAN

Haldor Topsoe A/S - DENMARK

Haldor Topsoe, Inc. - TX, USA

Halifax Fan Mfg. Co., Ltd. - UNITED KINGDOM

Hall, H.J. Associates Inc. - NJ, USA

Hamon Companies/ Hamon Corp. Plaza - NJ, USA

Hamon Research-Cottrell Italia SpA - ITALY

Hamon Research-Cottrell S.A. - BELGIUM

Hamon Research-Cottrell, Inc. - NJ, USA

Hamon Rothemuhle Cottrell GmbH - GERMANY

Han Hung Enterprise Co., Ltd. - TAIWAN

Harding ESE - IL, USA

Hartford Steam Boiler Ins. - CT, USA

Hartmann Forderanlagen GmbH - GERMANY

HDR Engineering, Inc. - NC, USA

HDR Techserv - MN, USA

Hefei Cement Res.& Design Inst - CHINA

Hein, Arthur G. - CANADA

Heinichen, Dieter - SOUTH AFRICA

Henderson & Associates Ltd. - CANADA

Henlex, Inc. - CANADA

HERA LLC - KS, USA

HERA, LLC - CA, USA

Herrick Engineering, Inc. - NC, USA

High-Voltage & EMC Group - NETHERLANDS

Hilborn, John W. - OH, USA

Hitachi Plant Engin.& Const.Co - JAPAN

Hitachi Plant Kiden Engng.Co. - JAPAN

Hitachi, Ltd. - JAPAN

Hon-Chen Envr.Cnslt.Engr.Ltd. - TAIWAN

Honeywell Inc. - PA, USA

Hontech Co., Ltd. - TAIWAN

Horizon International - UNITED KINGDOM

Horsehead Resource Dev.Co.,Inc - PA, USA

Hosokawa Micron Australia - AUSTRALIA

Hosokawa Micron Corporation - JAPAN

Hosokawa Micron Ltd. - CANADA

Houn-Chao Engr. Enterprise Co. - TAIWAN

Howden Fan Company - MA, USA

Howden Fan Company - NY, USA

Howden Power Ltd. - SCOTLAND

Huarn Mei Industry Corp. - TAIWAN

Hudson Products Corporation - TX, USA

Humboldt Wedag, Inc. - GA, USA

Humboldt-ZAB Zement. GmbH - GERMANY

Hung Chiao Envr. Tech. Engr. - TAIWAN

Hung Mao Envr. Sci. & Tech.Co. - TAIWAN

Hunghai Envr. Engineering Co. - TAIWAN

Hung-Yu Company Ltd. - TAIWAN

Hurner Umwelttechnik GmbH - GERMANY

Hwa Sheng Shing Yen Co. Ltd. - TAIWAN

Hwan Diin Engineering Co.,Ltd. - TAIWAN

Hwi Tai Water Treatment Co.Ltd - TAIWAN

Hydroair - AUSTRIA