Certificate of Completion

Peel Region,

Mississauga, Ontario,

Mississauga, Ontario,

Installation of Make-Up Air and Ventilation Systems in the D1/D8 Building at Boeing Toronto Ltd.

Date substantially performed:

2002-09-18

Date certificate signed:

2002-09-19

Name of Owner

Boeing Toronto Ltd.

Address of Owner

6972 Airport Road, Toronto, Ont. L4V 1E8.

Name of Contractor

Black & McDonald Ltd.

Address of Contractor

31 Pullman Court, Toronto, ON M1X 1E4

Name of Certifier

CMS Energy Viron Energy Services.

Address of Certifier

Boeing Toronto Ltd. 6972 Airport Road, Toronto, Ont. L4V 1E8