Stock Trading History of Blackstone Chemical Coinvest Partners (cayman) L.p

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Blackstone Chemical Coinvest Partners (cayman) L.p since year 2005. The trader's CIK number is 1314706. At the time of this reporting, Blackstone Chemical Coinvest Partners (cayman) L.p is the 10% Owner of Celanese Corp (stock ticker symbol CE).

Stock purchases, sales, and option exercises reported by *Blackstone Chemical Coinvest Partners (cayman) L.p* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-04-18	CE	Celanese Corp	Sale	328,741	30.50	10,026,600
2006-11-13	CE	Celanese Corp	Sale	27,781,065	20.10	558,399,406
2006-05-15	CE	Celanese Corp	Sale	32,411,243	21.05	682,256,665
2005-12-20	CE	Celanese Corp	Sale	5,324,705	18.00	95,844,690
2005-11-17	CE	Celanese Corp	Sale	11,112,426	17.10	190,022,484

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Blackstone Chemical Coinvest Partners (cayman) L.p (10% Owner of Celanese Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.