(Commission File No. 1-14862 )

São Paulo, June 22, 2016.

To

Brazilian Securities and Exchange Commission – CVM

Rua Cincinato Braga, 340

CEP: 01333-010

São Paulo – SP

Headquarters: Rua 7 de Setembro, 111

CEP: 20050-901

Rio de Janeiro/RJ

c/o:    Nelson Barroso Ortega

Corporate Oversight Department

Ref.: Official Letter 2554/2016-SAE/GAE 2

“Dear Sirs,

The news item published in the Valor Econômico newspaper on June 21, 2016, includes, among other information, the following statements:

·          the sale of polyethylene produced by Braskem Idesa in the Petrochemical Complex in Mexico, whose opening ceremony will take place on Wednesday, will generate additional revenue of US$1.5 billion to the Brazilian petrochemical company, Braskem, considering its regular operation in one year;

·          this year's contribution to the company’s revenue should range between US$650 million and US$700 million.

We did not identify this information in the documents sent by the company through the Empresas.NET System. In case this information is contradictory, please inform the document and pages that include the information and the date and time when such information was sent.

It is worth emphasizing that the company must disclose periodic, eventual and other information of interest to the market through the Empresas.NET System, thereby ensuring its ample and immediate dissemination and the equitable treatment of its investors and other market participants.

We would therefore request that you provide us with clarification regarding these matters by June 22, 2016, without prejudice to the provisions in the sole paragraph of article 6 of CVM Instruction 358/02, confirming their veracity or otherwise, as well as any other information deemed important.

We recall that the Reference Form (item 11 – Guidance) must be updated in up to seven (7) business days as of the change or disclosure of new guidance or estimates (item IX of paragraph 3 and item V of paragraph 4 of article 24 of CVM Instruction 480/09), without prejudice to the disclosure of a Material Fact, in accordance with article 3 of CVM Instruction 358/02.

In addition, we recall that, in case of disclosure of guidance or estimates, the issuer must contrast, every three months, in the appropriate field of the quarterly financial information (ITR) and the standardized financial statements (DFP), the guidance disclosed in the reference form and the results effectively obtained in the quarter, pointing out eventual differences (paragraph 4 of article 20 of CVM Instruction 480/09).

We emphasize the obligation, in accordance with the sole paragraph of article 4 of CVM Instruction 358/02, to inquire the administrators and the controlling shareholders of the company, in order to ascertain whether they are aware of information that should be disclosed to the market.

The content of the abovementioned request should be transcribed before the answer of said company on the file to be sent.

This request is under the scope of the Cooperation Agreement entered into by the Brazilian Securities and Exchange Commission (CVM) and the BM&FBOVESPA – Securities, Commodities and Futures Exchange on December 13, 2011, and the non-compliance may subject the company to an eventual punitive fine by the Corporate Relations Department (SEP) of the CVM, pursuant to CVM Instruction 452/07.”

Regarding the news article in reference, the Company clarifies to the market that the information mentioned by the CEO of Braskem Idesa – a subsidiary of Braskem – regarding revenue generated by the Petrochemical Complex in Mexico is not recognized by Braskem and does not mean any guidance provided by the Company.

Challenged by the Chief Investors Relations Officer of Braskem to clarify the methodology and parameters used for calculating the values mentioned in the news article, the CEO of Braskem Idesa announced that the US$1.5 billion amount was calculated by him multiplying the following factors:

A.   Total capacity of Braskem Idesa's polyethylene plant: 1.05 million tons per year, as disclosed in the Notice to the Market published by Braskem on April 6 of the current year.

B.    Estimate prepared by IHS consulting firm regarding the price per ton of polyethylene, based on the U.S. Gulf Coast reference disclosed in item 4.1 of the Reference Form, filed by the Company on May 31 of the current year.

With respect to revenue amount ranging from US$650 million and US$700 million, the CEO of Braskem Idesa announced that he used the same calculation method mentioned above, proportionally, considering the beginning of production along 2016 and the plant startup process, which is consistent with public reports disclosed by market analysts when estimating the project operation rate for the current year.

It is important to highlight that revenue alone, of a given project, does not impact the share price of a company, as it does not constitute a return metrics.

We remain at your disposal to provide any further clarification deemed necessary.

Sincerely,

Pedro Van Langendonck Teixeira de Freitas

Chief Financial and Investor Relations Officer

Braskem S.A.

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