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Assignor Name : STERLING CANADA, INC.

Total Assignments: 7

Assignment: 1

Reel/Frame:	013240/0018			Pages:	8
		Recorded:	11/12/2002
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

STERLING CANADA, INC.

Exec Dt:

10/01/1992

Assignee

STERLING PULP CHEMICALS, LTD.

302 THE EAST MALL

TORONTO, ONTARIO M9B 6C7, CANADA

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

5122240

NONE

07535165

5198080

NONE

07687741

Correspondence name and address
	SKADDEN, ARPS, SLATE ET AL
	STEVEN M. ROSENTHAL, ESQ.
	FOUR TIMES SQUARE
	NEW YORK, NY 10036

Assignment: 2

Reel/Frame:	008126/0807			Pages:	27
		Recorded:	09/16/1996
Conveyance:	SECURITY AGREEMENT

Assignor

STERLING CANADA, INC.

Exec Dt:

08/21/1996

Assignee

TEXAS COMMERCE BANK NATIONAL ASSOCIATION

5TH FLOOR

712 MAIN STREET

HOUSTON, TEXAS 77002

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4145401	NONE		05770362	4104114	NONE		05794240	4188260	NONE		05882362
4154809	NONE		05893463	4203961	NONE		05964681	4260552	NONE		06009730
4249990	NONE		06026204	4251502	NONE		06045850	4251224	NONE		06074958
4251503	NONE		06075098	4276262	NONE		06081269	4325783	NONE		06098190
4299653	NONE		06098524	4290998	NONE		06104151	4250159	NONE		06143888
4292275	NONE		06152565	4336228	NONE		06189645	4325934	NONE		06189703
4336120	NONE		06240578	4393035	NONE		06317518	4393036	NONE		06319971
4465658	NONE		06503786	4473540	NONE		06511549	4678655	NONE		06636506
4627969	NONE		06649923	4729817	NONE		06810590	4683039	NONE		06813078
4731169	NONE		06924570	4780304	NONE		07013020	4767510	NONE		07057107
4802959	NONE		07062637	4853096	NONE		07156965	4806215	NONE		07224756
4915927	NONE		07260500	4931268	NONE		07399398	5174868	NONE		07570791
5066477	NONE		07584494	5116595	NONE		07688438	5205995	NONE		07844231
5277768	NONE		07863247	5366714	NONE		07895675	5256261	NONE		07933108
5284553	NONE		08042784	5399332	NONE		08138640

Correspondence name and address
	ANDREW G. DINOVO
	2300 FIRSTT CITY TOWER
	1001 FANNIN STREET
	HOUSTON, TX 77002-6760

Assignment: 3

Reel/Frame:	010340/0293			Pages:	36
		Recorded:	11/03/1999
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

STERLING CHEMICALS, INC.

Exec Dt:

07/23/1999

STERLING CANADA, INC.

Exec Dt:

07/23/1999

STERLING PULP CHEMICALS US. INC.

Exec Dt:

07/23/1999

STERLING FIBERS, INC.

Exec Dt:

07/23/1999

STERLING CHEMICALS ENERGY, INC.

Exec Dt:

07/23/1999

STERLING CHEMICALS INTERNATIONAL, INC.

Exec Dt:

07/23/1999

STERLING PULP CHEMICALS INC.

Exec Dt:

07/23/1999

Assignee

CIT GROUP, THE/BUSINESS CREDIT, INC. AS ADMINISTRATIVE AGENT

22ND FLOOR

1211 AVENUE OF THE AMERICAS

NEW YORK, NEW YORK 10036

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4081520	NONE		05770360	4203961	NONE		05964681	4251224	NONE		06074958
4251503	NONE		06075098	4276262	NONE		06081269	4250159	NONE		06143888
4325934	NONE		06189703	4336120	NONE		06240578	4393035	NONE		06317518
4393036	NONE		06319971	4421707	NONE		06373090	4465658	NONE		06503786
4473540	NONE		06511549	4459332	NONE		06531367	4495030	NONE		06561752
4678655	NONE		06636506	4627969	NONE		06649923	4597843	NONE		06660340
4565727	NONE		06725527	4904343	NONE		06797539	4729817	NONE		06810590
4683039	NONE		06813078	4929502	NONE		06918246	4731169	NONE		06924570
4780304	NONE		07013020	4767510	NONE		07057107	4770868	NONE		07060903
4802959	NONE		07062637	4853096	NONE		07156965	4806215	NONE		07224756
4866107	NONE		07225673	4915927	NONE		07260500	4978517	NONE		07316879
4931268	NONE		07399398	5770171	NONE		07486122	5174868	NONE		07570791
5066477	NONE		07584494	5116595	NONE		07688438	5192604	NONE		07696467
5205995	NONE		07844231	5277768	NONE		07863247	5270384	NONE		07894988
5366714	NONE		07895675	5284910	NONE		07911543	5256261	NONE		07933108
5362562	NONE		08030953	5272198	NONE		08031090	5284553	NONE		08042784
5306782	NONE		08107090	5399332	NONE		08138640	5372632	NONE		08149870
5385978	NONE		08255689	5472995	NONE		08288363	5593653	NONE		08294604
5464465	NONE		08300680	5520866	NONE		08419879	5676920	NONE		08700110
5851374	NONE		08781045	5972499	NONE		08869081	5889080	NONE		08874597
5889082	NONE		08876680	5948236	NONE		08912171	6251357	NONE		09327529
6083562	NONE		09338022

Correspondence name and address
	MAYER, BROWN & PLATT
	NORA W. WHITESCARVER
	1909 K STREET, NW
	WASHINGTON, DC 20006

Assignment: 4

Reel/Frame:	010351/0370			Pages:	35
		Recorded:	11/03/1999
Conveyance:	SECURITY AGREEMENT

Assignors

STERLING CHEMICALS, INC.

Exec Dt:

07/23/1999

STERLING CANADA, INC.

Exec Dt:

07/23/1999

STERLING PULP CHEMICALS, US, INC.

Exec Dt:

07/23/1999

STERLING PULP CHEMICALS, INC.

Exec Dt:

07/23/1999

STERLING FIBERS, INC.

Exec Dt:

07/23/1999

STERLING CHEMICALS ENERGY, INC.

Exec Dt:

07/23/1999

STERLING CHEMICAL INTERNATIONAL, INC.

Exec Dt:

07/23/1999

Assignee

CIT GROUP/BUSINESS CREDIT, INC., THE, AS ADMINISTRATIVE AGENT

22ND FLOOR

1211 AVENUE OF THE AMERICAS

NEW YORK, NEW YORK 10036

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4081520	NONE		05770360	4203961	NONE		05964681	4251224	NONE		06074958
4251503	NONE		06075098	4276262	NONE		06081269	4250159	NONE		06143888
4325934	NONE		06189703	4336120	NONE		06240578	4393035	NONE		06317518
4393036	NONE		06319971	4421707	NONE		06373090	4465658	NONE		06503786
4473540	NONE		06511549	4459332	NONE		06531367	4495030	NONE		06561752
4678655	NONE		06636506	4627969	NONE		06649923	4597843	NONE		06660340
4565727	NONE		06725527	4904343	NONE		06797539	4729817	NONE		06810590
4683039	NONE		06813078	4929502	NONE		06918246	4731169	NONE		06924570
4780304	NONE		07013020	4767510	NONE		07057107	4770868	NONE		07060903
4802959	NONE		07062637	4853096	NONE		07156965	4806215	NONE		07224756
4866107	NONE		07225673	4915927	NONE		07260500	4978517	NONE		07316879
4931268	NONE		07399398	5770171	NONE		07486122	5174868	NONE		07570791
5066477	NONE		07584494	5116595	NONE		07688438	5192604	NONE		07696467
5205995	NONE		07844231	5277768	NONE		07863247	5270384	NONE		07894988
5366714	NONE		07895675	5284910	NONE		07911543	5256261	NONE		07933108
5362562	NONE		08030953	5272198	NONE		08031090	5284553	NONE		08042784
5306782	NONE		08107090	5399332	NONE		08138640	5372632	NONE		08149870
5385978	NONE		08255689	5472995	NONE		08288363	5593653	NONE		08294604
5464465	NONE		08300680	5520866	NONE		08419879	5676920	NONE		08700110
5851374	NONE		08781045	5972499	NONE		08869081	5889080	NONE		08874597
5889082	NONE		08876680	5948236	NONE		08912171	6251357	NONE		09327529
6083562	NONE		09338022

Correspondence name and address
	MAYER, BROWN & PLATT
	NORA A. WHITSCARVER
	1909 K STREET, N.W.
	WASHINGTON, D.C 20006

Assignment: 5

Reel/Frame:	010452/0882			Pages:	17
		Recorded:	12/17/1999
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

STERLING CANADA, INC.

Exec Dt:

07/23/1999

Assignee

HARRIS TRUST COMPANY OF NEW YORK

19TH FL.

WALL STREET PLAZA

NEW YORK, NEW YORK 10005

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4251224	NONE		06074958	4251503	NONE		06075098	4250159	NONE		06143888
4325934	NONE		06189703	4336120	NONE		06240578	4393035	NONE		06317518
4393036	NONE		06319971	4465658	NONE		06503786	4473540	NONE		06511549
4678655	NONE		06636506	4627969	NONE		06649923	4729817	NONE		06810590
4683039	NONE		06813078	4731169	NONE		06924570	4780304	NONE		07013020
4767510	NONE		07057107	4802959	NONE		07062637	4853096	NONE		07156965
4806215	NONE		07224756	4915927	NONE		07260500	4931268	NONE		07399398
5174868	NONE		07570791	5066477	NONE		07584494	5116595	NONE		07688438
5205995	NONE		07844231	5277768	NONE		07863247	5366714	NONE		07895675
5256261	NONE		07933108	5284553	NONE		08042784	5399332	NONE		08138640
5593653	NONE		08294604	5676920	NONE		08700110	5851374	NONE		08781045

Correspondence name and address
	LATHAM & WATKINS
	MELISSA JAMES
	885 THIRD AVENUE
	NY, NY 10022

Assignment: 6

Reel/Frame:	013835/0588			Pages:	10
		Recorded:	03/13/2003
Conveyance:	CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).

Assignor

STERLING CANADA, INC.

Exec Dt:

12/19/2002

Assignee

SUPERIOR PROPANE, INC.

SUITE 200, 302 THE WEST MALL

TORONTO, ONTARIO, CANADA M9B 6C7

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4465658	NONE		06503786	4473540	NONE		06511549	4678655	NONE		06636506
4627969	NONE		06649923	4729817	NONE		06810590	4683039	NONE		06813078
4731169	NONE		06924570	4767510	NONE		07057107	4853096	NONE		07156965
4915927	NONE		07260500	4931268	NONE		07399398	5174868	NONE		07570791
5066477	NONE		07584494	5116595	NONE		07688438	5205995	NONE		07844231
5277768	NONE		07863247	5366714	NONE		07895675	5284553	NONE		08042784
5399332	NONE		08138640	5593653	NONE		08294604	5676920	NONE		08700110

Correspondence name and address
	MICHAEL I. STEWART
	6TH FLOOR, 330 UNIVERSITY AVENUE
	TORONTO, ONTARIO CANADA M5G 1R7

Assignment: 7

Reel/Frame:	013897/0218			Pages:	11
		Recorded:	03/27/2003
Conveyance:	CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).

Assignor

STERLING CANADA, INC.

Exec Dt:

12/19/2002

Assignee

SUPERIOR PROPANE INC.

STERLING PULP CHEMICALS, A DIVISION OF SUPERIOR PROPANE INC.

SUITE 200, 302 THE WEST MALL

TORONTO, ONTARIO, CANADA M9B 6CT

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4465658	NONE		06503786	4473540	NONE		06511549	4678655	NONE		06636506
4627969	NONE		06649923	4729817	NONE		06810590	4683039	NONE		06813078
4731169	NONE		06924570	4767510	NONE		07057107	4853096	NONE		07156965
4915927	NONE		07260500	4931268	NONE		07399398	5174868	NONE		07570791
5066477	NONE		07584494	5116595	NONE		07688438	5205995	NONE		07844231
5277768	NONE		07863247	5366714	NONE		07895675	5256261	NONE		07933108
5284553	NONE		08042784	5399332	NONE		08138640	5593653	NONE		08294604
5676920	NONE		08700110	5851374	NONE		08781045	5948236	NONE		08912171
6251357	NONE		09327529	6555085	US20020037248		09774033

Correspondence name and address
	MICHAEL I. STEWART
	6TH FLOOR, 330 UNIVERSITY AVENUE
	TORONTO, ONTARIO, CANADA M5G 1R7

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