JEDDAH – Saudi Arabia's Sahara Petrochemical and Saudi International Petrochemical Co (Sipchem) said Tuesday they had begun initial talks on a potential merger. The Zamil Holding Company Group, one of the Kingdom's most prominent family businesses, is a major shareholder in both companies. A feasibility study will be carried out by the two companies over the next five months, with the plan then put to shareholders and the regulator for approval, separate statements from both companies to the Saudi stock exchange said. – SG