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Compañía de Minas Buenaventura S.A.A. press release

Notice of Third Quarter Earnings Release and Conference Call

NYSE - New York Stock Exchange · Peru

PITTSBURGH, October 11 /CNW/ - NOVA Chemicals (NYSE:NCX)(TSX:NCX):

Earnings Release: Wednesday, October 24, 2007 8:00 a.m. ET

Conference Call: Wednesday, October 24, 2007 1:00 p.m. ET (Please note new conference call start time.)

Dial-In Number: (416) 406-6419

Live Web Cast: Option 1 - The web cast link will be available at www.novachemicals.com - Investor Center - IR Calendar - 2007 Third Quarter Earnings Release Conference Call

or Option 2 - The web cast can be accessed live at Vcall's www.investorcalendar.com (ticker symbol NCX).

Audio Replay: An audio replay of the conference call will be available at (416) 695-5800 (passcode (number sign)3207770 through Wednesday, October 31, 2007.

Web Cast Replay: A web cast replay of the conference call will be archived at www.novachemicals.com - Investor Center - IR Calendar - 2007

Upcoming Earnings Release Dates:

-- 4th Quarter 2007 - Wed., January 30, 2008

Please note that dates and times are subject to change. Conference calls and live internet web casts to discuss quarterly earnings will be held at 1:00 p.m. Eastern Time on the day of the earnings release. Earnings will be released at 8:00 a.m. on the day indicated. The news release will contain the necessary instructions for accessing the call.

NOVA Chemicals produces plastics and chemicals that are essential to everyday life. Our employees develop and manufacture materials for customers worldwide that produce consumer, industrial and packaging products. We work with a commitment to Responsible Care(R) to ensure effective health, safety, security and environmental stewardship. Company shares are traded on the Toronto and New York stock exchanges as NCX.

Visit NOVA Chemicals on the Internet at www.novachemicals.com.

Earlier from Compañía de Minas Buenaventura S.A.A.