Amer al-Luwaihaq, chairman of Saudi-based Taif Investment and Tourism, has announced the firm is to launch work this week at real estate projects in the Taif region estimated at SR150m ($40m), Arabic Okaz daily has reported. The projects include the construction of 70 residential units, a mosque, a conference hall, two health clubs, infrastructure renovation, as well as expansion of shopping and entertainment facilities, he said.