Emaar Properties has appointed a new chief executive. Abdulla Lahej is the new CEO. He joined Emaar as an assistant project manager in 2000 and led flagship projects such as Downtown Dubai, including construction of the Burj Khalifa He replaces long-serving Low Ping, who will remain an advisor to the company's chairman and founder Mohammed Alabbar, and work with him on his Asian real estate development projects, Emaar said in a stock market filing.Ping left the CEO post towards the end of 2013.