IPLOM, Busalla Refinery (GE) - Italy
SARAS, Sarroch Refinery (CA) – Italy
REFINERIA CAZA/GUAN - Cuba
API “Raffineria di Ancona” – Italy
ABB LUMMUS
SNAMPROGETTI
TUPRAS, Kirikkale Refinery – Turkey
CONDEA  Augusta
AGIPPETROLI, Gela – Italy
SASOL TECHNOLOGY
KOCH-GLITSCH
PETROFAC
SAYED HAMID BEHBEHANI & SONS CO.
BABCOCK AFRICA
TECHINT
TECHNIP-COFLEXIP
PROSERNAT
BENELLI Oil &Gas
ENICHEM - Italy
FIS, Alte Montecchio - Italy
RHONE POULENC, Chalampè – France
METHIONINE COMPLEX - Russia
SCECO CENTRAL,  Riyad – Saudi Arabia
RALLIS,  Bombay – India
ANSALDO -  Libano
ORCHAD CHEMICAL
ATOFINA, Rho - Italy
INALCA - Italy
NPC Shahid Tondgooian Petrochemical Co. - Iran