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Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ______       No ___X___

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RELEVANT FACT

Braskem S.A. (“Braskem”), by itself and its controlling company EDSP58 Participações S.A. (“Offeror”), and Copesul – Companhia Petroquímica do Sul (“Copesul’), in compliance with the provisions of CVM Ruling 358/02, disclose to the market that in the auction for Public Tender Offer for the Acquisition of Copesul shares (“OPA”) carried out on this date through the electronic trading system of the São Paulo Stock Exchange – Bovespa, the Offeror acquired 34,040,927 (thirty-four million, forty thousand, nine hundred and twenty-seven) common shares of Copesul, representing more than two thirds (2/3) of the outstanding shares.

Since more than two thirds (2/3) of the outstanding shares were acquired, after verification that the rules applicable to the OPA have been complied with, the Brazilian Securities Commission (“CVM”) shall delist Copesul as a publicly held company within fifteen (15) days counted from the receipt of the statements regarding the auction’s results.

During the period of three (03) months as from the date of the auction, the shareholders owning Copesul outstanding shares may sell their shares to the Offeror for the same price offered in the OPA, adjusted up to the date of actual payment, as per the OPA Notice published on August 14, 2007.

Moreover, considering that less than five percent (5%) of the total shares remain outstanding, Copesul’s board of directors shall call a general shareholders’ meeting to resolve on the redemption of such shares for the price offered in the OPA, pursuant to article 4, paragraph 5 of Law 6404/76.

We would like to stand out that, according to Ruling 361/02, Bovespa has a period of 4 business days to forward to CVM the final statements referring to the auction.

São Paulo, October 5, 2007

Carlos Fadigas		Michael Machado
Investors Relations and Financial		Investors Relations and Financial Officer
Officer		Copesul – Companhia Petroquímica do Sul
Braskem S.A.

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SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: October 09, 2007

	BRASKEM S.A.
	By:	/s/      Carlos José Fadigas de Souza Filho
		Name:	Carlos José Fadigas de Souza Filho
		Title:	Chief Financial Officer

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