Markus Wildi, president of Dow Chemical has said that no decision has been taken on technology or product mix at its $15bn joint venture petrochemicals plant with Saudi Aramco at Jubail, Meed has reported. "The project is in the feed stage and that should be completed in the middle of next year," Wildi said. "Only when the feed study is complete will we be able to make a decision on the product mix and the technologies we use." Construction work is due to begin in early 2012.