------------------- CUSIP NO. 470359100 13 G PAGE 17 OF 18 PAGES ------------------- -------------------Agreement • January 18th, 2007 • High Ridge GP Holdings LLC • Fire, marine & casualty insurance
Pursuant to Rule 13d-1(k)(1) promulgated pursuant to the Securities Exchange Act of 1934, as amended, the undersigned agree that the attached Schedule 13G/A is being filed on behalf of each of the undersigned with respect to the shares of common stock, $0.01 par value per share, of James River Group, Inc.
