PARIS Cie de Saint-Gobain SA and CRH Plc were among European building material suppliers upgraded by Credit Suisse Group AG, which citied a possible US housing recovery this year. Both Saint-Gobain and CRH were raised to 'outperform' from 'neutral,' while Greece's Titan Cement Co was upgraded to 'neutral' from 'underperform.' The bank maintained its 'underperform' ratings on Switzerland's Holcim and France's Lafarge, the world's two biggest cement makers. Keep up with the latest business news from the region with the Emirates Business 24|7 daily newsletter. To subscribe to the newsletter, please click here .