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 July, 2025

(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- _____.

BRASKEM S.A.

CNPJ Corporate Taxpayer ID (CNPJ): 42.150.391/0001-70

Company Registry: 29.300.006.939

Publicly Held Company

MATERIAL FACT

PRODUCTION & SALES REPORT

SECOND QUARTER 2025

São Paulo, July 30, 2025 – Braskem S.A. (“Braskem” or “Company”) reports to its shareholders and the market its Production & Sales Report for the second quarter of 2025. Note that the information herein is based on preliminary data. The figures in this report were not revised by the Company's independent auditor.

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

Contents

In the second quarter of 2025, the global demand scenario was impacted by trade tensions between the United States and China, as well as uncertainties around tariffs. These conditions impacted global trade flow and affected the price references in the international market, resulting in a reduction compared with first quarter of 2025 of (i) 10% and 12% in the international reference prices for PE, which are used as references in the Brazil and Mexico segments, respectively; and (ii) 4%, 6% and 7% in international references for PP, PVC and Main Chemicals, respectively, which are used as a reference in the Brazil segment.

Additionally, the costs of goods sold in the quarter were pressured by feedstock purchased in previous periods, when prices were higher while compared to 2Q25. This mismatch between the cost of feedstock and sales price impacted the Company's profitability in the quarter.

In this scenario, the Company directed efforts to optimize inventory levels, seeking higher operational efficiency.

In Mexico, Braskem Idesa has begun its first general maintenance shutdown at its petrochemical plant since its inauguration, which negatively impacted the production and availability of PE for sale in the second quarter.

 

Average utilization rate of petrochemical crackers: in line with 1Q25, mainly impacted by higher production at the Rio de Janeiro petrochemical Complex due to the inventory build-up in anticipation of the scheduled shutdown of this plant, expected to occur in 3Q25. This effect was offset by (i) the continuous adjustment of production levels to meet lower demand in the period; and (ii) the lower supply of feedstock at the São Paulo Petrochemical Complex.

In relation to 2Q24, the increase in the utilization rate (+3 p.p.) is mainly explained by the normalization of operations at the petrochemical Complex of Triunfo, state of Rio Grande do Sul, which was interrupted during 2Q24 due to the extreme weather event that impacted the state.

Resin’s sales volume: in the Brazilian market, the increase (+3%) in relation to 1Q25 is mainly explained by the anticipation of purchases in the transformation chain due to (i) lower prices in the international market during 2Q25, impacted by the uncertainties around tariffs; and (ii) the expectation of an increase in international price references during the second half of 2025.

In relation to 2Q24, sales volume remained in line (+1%), highlighting the increase in PVC and PE sales volume by 6% and 2%, respectively, partially offset by the reduction in PP sales volume by 3%.

Exports were higher compared to 1Q25 (+19%) mainly explained by the higher volume of PE and PP exports, mainly to South America due to the higher availability of products for export.

 

In relation to 2Q24, the increase (+30%) is mainly explained by the higher availability of product for export given the lower demand for PE and PP in the Brazilian market.

Main chemicals sales volume^[1]: in the Brazilian market, remained in line while compared to 1Q25, mainly explained by the higher sales volume of benzene and propylene due to a demand increase in the Brazilian market. This effect was partially offset by the lower sales volume of (i) paraxylene due to the scheduled shutdown of its production unit that occurred in 2Q25; and (ii) ethylene due to the reduction in demand in the Brazilian market during the period.

In relation to 2Q24, the sales volume remained in line (+1%) highlighting the increase in sales volume of gasoline, toluene and benzene, given the higher availability of product for sale due to the normalization of operations in Rio Grande do Sul, partially offset by the lower sales volume of paraxylene due to the unit’s scheduled shutdown that occurred in 2Q25.

Exports were lower compared to 1Q25 (-39%), mainly explained by the lower volume of exports of butadiene, benzene, paraxylene, and toluene due to the lower availability of product for export.

^[1] Main chemicals refer to: ethylene, propylene, butadiene, cumene, gasoline, benzene, toluene and paraxylene due to the representation of these products in the segment’s net revenue.

 

The decrease (-56%) compared to 2Q24 is mainly explained by the lower volume of exports of gasoline, benzene and toluene.

Average utilization rate of green ethylene^[2]: lower compared to 1Q25 (-16 p.p.) mainly due to the optimization of inventories carried out in the quarter to meet current demand.

In relation to 2Q24, the increase (+36 p.p.) is explained by the normalization of operations at the Triunfo Petrochemical Complex, in Rio Grande do Sul, which were interrupted during 2Q24 due to the external weather event that impacted the state.

Green PE (I’m green^TM biobased) sales volume: increased compared to 1Q25 (+24%) mainly due to higher demand from new and existing customers.

The increase compared to 2Q24 (+10%) is mainly explained by the higher availability of the product for sale, after the normalization of operations at the Triunfo Petrochemical Complex, which had been interrupted due to the weather event that occurred in 2Q24.

² Due to the review of green ethylene production capacity, starting in 2Q25, the calculation of the utilization rate considers the production capacity of 275 thousand tons per year.

 

Average utilization rate of PP plants^[3]: remained in line compared to 1Q25, mainly due to the increase in production in the United States driven by the seasonal increase in demand, explained by inventory buildup in the chain in anticipation of the hurricane season in the region, partially offset by lower production in Europe, mainly because of the lower availability of feedstock caused by operational adjustments made by suppliers.

Compared to 2Q24, the utilization rate was lower (-4 p.p.) mainly due to the lower supply of propylene in Europe in 2Q25.

PP sales volume: increased compared to 1Q25 (+2%) mainly due to higher seasonal demand in the United States.

Compared to 2Q24, sales volume remained in line (+1%).

^[3] 1Q25 polypropylene capacity updated to consider total nameplate capacity of 2,021 kt/year in the United States.

 

Average utilization rate of PE plants: lower compared to 1Q25 (-35 p.p.) and 2Q24 (-34 p.p.), mainly due to (i) the beginning of the general maintenance planned shutdown at the Braskem Idesa Petrochemical Complex; and (ii) lower ethane supply due to operational issues at PEMEX, which was around 19.6 thousand barrels per day compared to 28.3 thousand barrels per day in 1Q25 and 26 thousand barrels per day in 2Q24.

The volume of ethane supplied through the Fast Track solution was around 26 thousand barrels per day, compared to 21.3 thousand barrels per day in 1Q25 and 23 thousand barrels in 2Q24.

PE sales volume: lower compared to 1Q25 (-16%) and 2Q24 (-33%), mainly due to the lower availability of products for sale, explained by lower production, as mentioned above.

 

 

 

BRAZIL/SOUTH AMERICA

^[4] (US PE Price – naphtha ARA price)*82%+(US PE Price – 50% US ethane price – 50% US propane price)*18%.

^[5] Asia PP price – Naphtha ARA price.

^[6] PVC Price: Asia PVC Price + (0.685*US Caustic Soda) - (0.48*Europe Ethylene) - (1.014*Brent).

^[7] Average price of base chemicals (Ethylene (20%), Butadiene (10%), Propylene (10%), Cumene (5%), Benzene (20%), Paraxylene (5%), Gasoline (25%) and Toluene (5%), based on Braskem’s sales volume mix) – naphtha ARA price.

 

UNITED STATES AND EUROPE

MEXICO

^[8] U.S. PP – U.S. propylene price

^[9] EU PP – EU propylene price

^[10] U.S. PE – U.S. ethane price

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: July 30, 2025

DISCLAIMER ON FORWARD-LOOKING STATEMENTS

This Material Fact may contain forward-looking statements. These statements are not historical facts, but rather 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 regarding the geological event in Alagoas and related legal procedures on the Company's business, financial condition and operating results. The words “project,” “believe,” “estimate,” “expect,” “plan”, “objective” 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, the objective of expanding its efforts to achieve the sustainable macro objectives disclosed by the Company, 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, but not limited to, general economic and market conditions, industry conditions and operating factors, availability, development and financial access to new technologies. Any change in these assumptions or factors, including the projected impact from the joint venture and its development of technologies, from the geological event in Alagoas and related legal procedures and the unprecedented impact on businesses, employees, service providers, shareholders, investors and other stakeholders of the Company could cause effective 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 Material Fact does not constitute any offer of securities for sale in Brazil. No securities may be offered or sold in Brazil without being registered or exempted from registration, and any public offer of securities carried out in Brazil must be made through a prospectus, which would be made available by Braskem and contain detailed information on Braskem and its management, as well as its financial statements.