July 10 (Reuters) - Holcim Ltd
* Bernard Fontana steps down as CEO of Holcim Ltd
* Bernard Fontana will step down from his position as CEO of Holcim Ltd with completion of merger.
* Will also resign from all mandates in all Holcim Group entities
* Mandate of new board of directors and executive committee will be effective from date of completion of merger Source text: (bit.ly/1LVjjDl) Further company coverage: [HOLN.VX LAFP.PA]