0000950103-09-001298 DEFA14A 2 20090602 20090602 20090602 GHL Acquisition Corp. 0001418819 3669 000000000 DE 1231 DEFA14A 34 001-33963 09869194 C/O GREENHILL & CO. 300 PARK AVENUE NEW YORK NY 10022 212-389-1500 C/O GREENHILL & CO. 300 PARK AVENUE NEW YORK NY 10022 DEFA14A 1 dp13635_8k.htm FORM 8-K EX-99.1 2 dp13635_ex9901.htm EXHIBIT 99.1