Exhibit 99.1 (8) Mr. Kreider is signing in his capacity as attorney-in-fact for William J. Janetschek, director of KKR Group Limited, the general partner of KKR Group Holdings L.P. (9) Mr. Kreider is signing in his capacity as attorney-in-fact for William 3. Janetschek, director of KKR Group Limited. (10) Mr. Kreider is signing in his capacity as attorney-in-fact for William J. Janetschek, Chief Financial Officer of KKR Management LLC, the general partner of KKR & Co. L.P. (11) Mr. Kreider is signing in his capacity as attorney-in-fact for William J. Janetschek, Chief Financial Officer of KKR Management LLC.