## ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE 

None. 

## ITEM 9A.CONTROLS AND PROCEDURES 

## (a) Evaluation of Disclosure Controls and Procedures 

We performed an evaluation of the effectiveness of our disclosure controls and procedures as of December 31, 2011. The evaluation was performed with the participation of senior management of each business segment and key corporate functions, and under the supervision of the Chief Executive Officer (CEO) and Chief Financial Officer (CFO). Based on this evaluation, the CEO and CFO concluded that our disclosure controls and procedures were operating and effective as of December 31, 2011. 

## (b) Management’s Report on Internal Control Over Financial Reporting 

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Our internal control system was designed to provide reasonable assurance to our management and board of directors regarding the reliability of financial reporting and the preparation of financial statements for external purposes. 

Our management conducted an assessment of the effectiveness of our internal control over financial reporting as of December 31, 2011. This assessment was based on the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated Framework. Based on this assessment, management has concluded that, as of December 31, 2011, our internal control over financial reporting was effective. 

Our independent registered public accounting firm has issued a report on the effectiveness of our internal control over financial reporting, which is below. 

