| ABB |
LURGI |
| ALUMINIUM DUNKERQUE |
MISSISSIPPI POWER |
| ALABAMA POWER |
MOZYR OIL |
| AL-TUWAIRQI |
MURCO PETROLEUM |
| AMERICAN ELECTRIC |
NATIONAL POWER |
| BAMAG |
NATCO |
| BAPCO |
NESTLE |
| BHP |
NEVADA POWER |
| BIRWELCO |
NORDURAL |
| BLUE CIRCLE |
NORTH LONDON WASTE |
| BOC |
PENNSYLVANIA POWER & LIGHT |
| BP |
PETROFINA |
| BRITANNIA LEAD |
PHILIPS PETROLEUM |
| BRITISH SUGAR |
POTOMAC ELECTRIC POWER |
| CALLIDUS |
PUBLIC SERVICE ELECTRIC |
| CEMEX |
QATAR ALUMINIUM |
| CENTRAL ILLINOIS LIGHT & POWER |
RIO TINTO ALCAN |
| CHEVRON TEXACO |
ROANOKE CEMENT |
| COLUMBUS & SOUTHERN POWER |
RUGBY CEMENT |
| CONOCO |
SAUDI CABLE |
| CORUS |
SCHEDULE HEAT & POWER |
| COSTAIN |
SCOTTISH POWER |
| COURTAULDS |
SEAN QUINN CEMENT |
| DANIELLI COMBUSTION |
SEVERN TRENT WATER |
| D B RILEY |
SHAW GROUP UK |
| DIDIER WERKE |
SHELL REFINING |
| DOOSAN BABCOCK ENERGY |
SERVICES SITA |
| DORR OLIVER |
SOUTH CAROLINA LIGHT |
| DUBAI ALUMINIUM |
SNC LAVALIN/WORLEY PARSONS |
| DUTCO McCONNELL |
DOWELL STATOIL |
| EASTERN MERCHANT |
STERLING PROCESS |
| EDISON MISSION |
STONE & WEBSTER |
| EMIRATES ALUMINIUM |
SITA |
| ESB POWER GENERATION |
TAKUMA |
| ESSO CHEMICALS & PETROLEUM |
TEXACO |
| EXXON MOBIL |
T.E.I. |
| FFE MINERALS |
THAMES WATER |
| FLS MINERALS |
TIOXIDE |
| FOSTER WHEELER |
TOTAL |
| GEORGIA POWER |
TOTAL LINDSEY OIL |
| GULF OIL |
TUSCALOOSA STEEL |
| ICI |
UHDE |
| ICF KAISER |
ULTRASYSTEMS |
| INEOS |
UNITED UTILTIES |
| KHD HUMBOLDT WEDAG |
VAI |
| KAVERNER |
VAW |
| LAFARGE CEMENT |
YORKSHIRE WATER |
| LUKOIL |
ZACHRY CONSTRUCITON |