[SMIC Raises First Quarter 2012 Revenue and Gross Margin Guidance SHANGHAI, April 9, 2012 /PRNewswire-Asia/ — Semiconductor Manufacturing International Corporation (“SMIC”; NYSE: SMI; SEHK: 981), one of the world’s leading semiconductor foundries, is pleased to announce today an upward revision of its first quarter revenue and gross margin guidance for the three months ended March 31, 2012, which was originally]