content_image/45484.jpg
## Stock Based Compensation 

U.S. GAAP requires the measurement and recognition of compensation expense related to certain stock-based compensation. The Company has accounted for stock-based compensation for U.S. GAAP purposes in accordance with APB 25, “Accounting for Stock Issued to Employees.” The difference between compensation expense measured in accordance with APB 25 and the amount which would have been recognized under Statement of Financial Accounting Standards No. 123, “Accounting for Stock-based Compensation,” is not material. 

## Post-employment Benefits Disclosure 

In 1999, post-employment benefits were accounted for using the cost method under Canadian GAAP and the accrual method under U.S. GAAP. Commencing in 2000, the Company uses the accrual method in its Canadian GAAP financial statements. The tables below detail the changes in the benefit obligation, the fair value of plan assets and the recorded asset or liability using the accrual method. 

<img src='content_image/45484.jpg'>

