SCHEDULE 13G

EXHIBIT A

RELEVANT SUBSIDIARIES AND MEMBERS OF FILING GROUP

PARENT HOLDING COMPANIES OR CONTROL PERSONS:

Warren E. Buffett (an individual who may be deemed to control Berkshire Hathaway Inc.)

Berkshire Hathaway Inc.

EMPLOYEE BENEFIT PLANS IN ACCORDANCE WITH § 240.13d-1-(b)(1)(ii)(F):

Benjamin Moore & Co. Retirement Income Plan