The British Petroleum Company P.l.c
The Chance And Hunt Ltd.
The Dupont Ammonia Corporation
The Engelhard Corporation
The Foundation Of Research And Technology Hellas / Institute Of
The Hong Kong Polytechnic University
The Houdry Process Corporation
The Intermetal Corporation
The Mitre Corporation
The National Lime & Stone Co.
The National Lime And Stone Company
The National Silicates
The Nippon Synthetic Chemical Industry Co.
The Nuodex Products Company Inc.
The Petroleum Oil And Gas Corporation Of South Africa (pty) Ltd.
The Prodorite
The Robert L. Strickman Foundation
The Standard Oil Company
The Sulfatreat Company
The Thermal Industrial And Chemical (t.i.c.) Research Company