Legal contingencies (Tables)

12 Months Ended

Dec. 31, 2025

Notes and other explanatory information [abstract]

Schedule of legal advisors

	12/31/2025				12/31/2024
Nature	Current		Non-current		Current		Non-current
Civil		—		3,717		155		1,742
Labor		—		1,703		—		1,529
Total		—		5,420		155		3,271

Schedule of changes in legal claim contingency

Nature	12/31/2024		Accrued Charges		Net utilization of reversal			(-) Suppliers		Exchange Variation			Foreign currency translation adjustment of subsidiary		12/31/2025
Civil (1)		1,897		1,536		(25	)		258		(181	)		232		3,717
Labor		1,529		96		—			—		(106	)		184		1,703
Total		3,426		1,632		(25	)		258		(287	)		416		5,420

(1) Sigma is a party to certain lawsuits and arbitrations, and a portion of the amount involved is recognized in the Company's statement.

Schedule of provision liabilities

Nature	12/31/2025		12/31/2024
Civel (1)		19,125		6,139
Regulatory		149		128
Labor		2,495		487
Possible loss, net		21,769		6,754