EXHIBIT 1.1 35,000,000 SHARES CELANESE CORPORATION SERIES A COMMON STOCK, PAR VALUE $.0001 PER SHARE UNDERWRITING AGREEMENT May 9, 2006Celanese CORP • May 10th, 2006 • Plastic material, synth resin/rubber, cellulos (no glass) • New York
Company FiledMay 10th, 2006 Industry Jurisdiction