1) HEXANES
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1991-05-30


2) SULPHURIC ACID
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1991-10-10

3) SULFURIC ACID # 600
Manufacturer: CORCO CHEMICAL CORPORATION
Index Date: 1986-08-04

4) SULFURIC ACID
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1995-12-08

5) NITRIC ACID #500
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1993-10-14

6) ACETIC ACID,GLACIAL (ACS) #300
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1992-02-06

7) NITRIC ACID
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1991-11-21

8) XYLENES #2100
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1991-07-11

9) HEXANES #1305
Manufacturer: CORCO CHEMICAL CORPORATION
Index Date: 1991-05-30

10) SULFURIC ACID,600
Manufacturer: CORCO CHEMICAL CORP
Index Date: 1991-10-10