CLARK, Philippines and MCLEAN, Va, 2015-12-21 — /Travel PR News/ — Hilton Worldwide (NYSE: HLT) and Hilton Hotels & Resortstoday announced the signing of a management agreement with Sunvalley Hotel Clark Corporation to manage Hilton Clark Sun Valley Resort in the Philippines. Hilton Clark Sun Valley Resort is scheduled to open in the fourth quarter of 2017 and will… Read the full press release