| （1）. Water treatment: a.Puckorius & Associates, Inc. b.Rohm & Haas Company c.Great Lakes Chemical Corporation d.Buckman Laboratories (Asia) Pte Ltd. | |
| （2）. Equipment: a.Neptune Chemical Pump Co. | |
| （3）. Process additives: a.Ciba Specialty Chemicals Corporation b.Vecor Industries Incorporated c.Phillips Chemical Company – specialty chemicals |