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

NOVA Chemicals to present at Scotia Capital Materials Conference

NYSE - New York Stock Exchange · Peru

PITTSBURGH, May 24 /CNW/ - NOVA Chemicals (NYSE:NCX)(TSX:NCX):

Conference: Scotia Capital Materials Conference Wednesday, May 30, 2007 10:40 a.m. Speaker: Jeff Lipton, President and CEO

Live Webcast Access: Option 1 - The webcast link will be available at www.novachemicals.com - Investor Center - IR Calendar - Scotia Capital Materials Conference or Option 2 - The webcast link also will be available at http://events.streamlogics.net/scotiacapital/may29-07/index.asp

Presentation The slides will be available on the morning of the Slides: presentation at www.novachemicals.com - Investor Center - IR Calendar.

Webcast Replay: A replay of the webcast will be available for three months ending Tuesday, August 28, 2007 at 5:00 p.m. at www.novachemicals.com - Investor Center - IR Calendar - Archives 2007.

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.