SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16
OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of February, 2022

(Commission File No. 1-14862 )

BRASKEM S.A.

(Exact Name as Specified in its Charter)

N/A

(Translation of registrant's name into English)

Rua Eteno, 1561, Polo Petroquimico de Camacari
Camacari, Bahia - CEP 42810-000 Brazil

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___       Form 40-F ______

Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(1). _____

Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(7). _____

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___

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _____.

NOTICE TO THE MARKET

São Paulo, February 18, 2022 - BRASKEM S.A. (“Braskem” or “Company”) informs its shareholder and the market that at the request of a shareholder holding of class “B” preferred shares, 21,440 Class “B” preferred shares were voluntarily converted into 10,720 Class “A” preferred shares, pursuant to the terms of Article 6, paragraph 3, of the Company's Bylaws. As a result, the Company's equity interest is now divided into 797,207,834 shares, comprising 451,668,652 common shares, 345,060,392 class “A” preferred shares and 478,790 class “B” preferred shares. The amendment to Article 4 of the Company's Bylaws to reflect the aforementioned voluntary conversion will be submitted to the next General Shareholders' Meeting to be called by the Company.

For more information, contact Braskem's Investor Relations Department by calling +55 (11) 3576-9531 or emailing braskem-ri@braskem.com.br.

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: February 18, 2022

DISCLAIMER ON FORWARD-LOOKING STATEMENTS

This Notice to the Market may contain forward-looking statements. These statements are not historical facts, but are based on the current view and estimates of the Company's management regarding future economic and other circumstances, industry conditions, financial performance and results, including any potential or projected impact related to Braskem Idesa on the Company's business, financial condition and operating results. The words “foresee”, “believe”, “estimate”, “expect”, “plan” and other similar expressions, when referring to the Company, are used to identify forward-looking statements. Statements related to the possible outcome of legal and administrative proceedings, implementation of operational and financing strategies and investment plans, guidance on future operations, as well as factors or trends that affect the financial condition, liquidity or operating results of the Company are examples of forward-looking statements. Such statements reflect the current views of the Company's management and are subject to various risks and uncertainties, many of which are beyond the Company’s control. There is no guarantee that the events, trends or expected results will actually occur. The statements are based on various assumptions and factors, including general economic and market conditions, industry conditions and operating factors. Any change in such assumptions or factors, including the projected impact related to Braskem Idesa on businesses, employees, service providers, shareholders, investors and other stakeholders of the Company can cause actual results to differ significantly from current expectations. For a comprehensive description of the risks and other factors that could impact any forward-looking statements in this document, especially the factors discussed in the sections, see the reports filed with the Brazilian Securities and Exchange Commission (CVM). This Notice to the Market is not an offer of securities for sale in the United States, any securities may not be offered or sold in the United States absent registration or an exemption from registration, any public offering of securities to be made in the United States will be made by means of a prospectus that may be obtained from Braskem and that will contain detailed information about Braskem and management, as well as financial statements.