RIYADH, 3 August — A Saudi-Yemeni joint venture, Yellow Sand Company for Desert Tourism, has signed a contract to set up an office in Sanaa. The company will promote desert tourism in Yemen, said Abdullah Al-Hummami, company’s Saudi director general. It will also organize hunting trips for lovers of desert hunting . The company will take care of hunting tourists coming from outside Yemen. Also, trips will be arranged to archaeological sites.