Peel Region
City of Mississauga
City of Toronto (formerly City of Etobicoke)
Lester B. Pearson International Airport, Toronto, Ontario

This is to certify that the contract for the following improvement: APM - Station Fiber Copper Backbone Cabling, NTB1, T3 and Area 6A Stations - TP-H04-034C
To the above premises was substantially performed on: June 1, 2006
Date Certificate Signed: June 7, 2006
Name of Owner: Greater Toronto Airports Authority
Address for Service: Lester B. Pearson International Airport P.O. Box 6031, Toronto, AMF, O ON L5P 1B2
Name of Contractor: Bell Canada
Address for Service: 21 Canniff St., Flr. 3S, Toronto, ON M5V 3G1
Name of Payment Certifier: Earth Tech Canada
Address: 105 Commerce Valley Dr. W., Markham, ON L3T 7W3
Identification of premises for preservation of liens: (1) In the City of Mississauga, in the Regional Municipality of Peel, in the Province of Ontario, being composed of: PIN 13526-0011 (LT), PIN 135260001 (LT), PIN 13526-0002 (LT), PIN 13526-0003 (LT), PIN 13526-0004 (LT), PIN 135260005 (LT), PIN 13526-0006 (LT), PIN 13526-0007 (LT), PIN 13526-0008 (LT), PIN 135260009 (LT), PIN 13263-0105 (LT), PIN 13281-0038 (LT), PIN 13281-0030 (LT), PIN 132810026 (LT), PIN 13281-0040 (LT), PIN 13281-0048 (LT), PIN 13274-0051 (LT), PIN 132730369 (LT), PIN 13260-0094 (LT), PIN 13262-0034 (LT), PIN 13263-0118 (LT), PIN 132620014 (LT), PIN 13262-0042 (LT), PIN 13276-0119 (LT), PIN 13276-0120 (LT)
(2) In the City of Toronto (formerly City of Etobicoke, in the Municipality of Metropolitan Toronto) in the Province of Ontario, being composed of: PIN 07633-0001 (LT), PIN 07633-0002 (LT), and Lots 3 and 4, Plan No. 12114 (1)