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Investments in subsidiaries, joint ventures and associates - Summary of Amounts of Balance Sheets and Income Statements of Associates (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of associates [line items] |  |  |  |  |
Current assets | R$ 18,648,895 |  | R$ 18,564,600 |  |
Non-current assets | 19,603,079 |  | 17,876,403 |  |
Current liabilities | 11,229,658 |  | 12,766,252 |  |
Non-current liabilities | 12,992,490 |  | 11,499,783 |  |
Equity | 14,029,826 |  | 12,174,968 | R$ 10,469,240 | R$ 9,910,265
Net revenue | 126,048,701 |  | 143,634,708 | 109,732,842 |
Costs, operating expenses and income | (602,865) |  | (514,522) | 96,166 |
Net income (loss) for the year | 2,517,753 |  | 1,840,069 | 883,878 |
Transportadora sulbrasileira de gas [member] |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |
Current assets | 10,827 |  | 8,598 |  |
Non-current assets | 9,329 |  | 10,420 |  |
Current liabilities | 3,642 |  | 2,824 |  |
Non-current liabilities | 602 |  | 601 |  |
Equity | 15,912 | [1] | 15,593 |  |
Net revenue | 16,212 |  | 18,250 | 15,126 |
Costs, operating expenses and income | (8,145) |  | (7,593) | (12,691) |
Net finance income and income and social contribution taxes | 186 |  | 76 | (226) |
Net income (loss) for the year | R$ 8,253 | [1] | R$ 10,733 | R$ 2,209 |
Number of shares or units held | 20,124,996 |  | 20,124,996 | 20,124,996 |
Interest in share capital - % in associates | 25.00% | [1] | 25.00% | 25.00% |
Oxicap Industria de Gases [member] |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |
Net revenue |  |  |  | R$ 69,611 |
Costs, operating expenses and income |  |  |  | (68,390) |
Net finance income and income and social contribution taxes |  |  |  | (904) |
Net income (loss) for the year |  |  |  | R$ 317 |
Number of shares or units held |  |  |  | 1,987 |
Interest in share capital - % in associates |  |  |  | 15.00% |
Quimica da Bahia Industria e Comercio S.A. [member] |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |
Net revenue |  |  |  | R$ 0 |
Costs, operating expenses and income |  |  |  | (28) |
Net finance income and income and social contribution taxes |  |  |  | 0 |
Net income (loss) for the year |  |  |  | R$ (28) |
Number of shares or units held |  |  |  | 1,493,120 |
Interest in share capital - % in associates |  |  |  | 50.00% |
Metalurgica plus [member] |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |
Current assets | R$ 5 |  | R$ 6 |  |
Non-current assets | 0 |  | 0 |  |
Current liabilities | 32 |  | 29 |  |
Non-current liabilities | 742 |  | 448 |  |
Equity | (769) | [2] | (471) |  |
Net revenue | 0 |  | 0 | R$ 0 |
Costs, operating expenses and income | (263) |  | (245) | (239) |
Net finance income and income and social contribution taxes | (35) |  | (69) | (61) |
Net income (loss) for the year | R$ (298) | [2] | R$ (314) | R$ (300) |
Number of shares or units held | 3,000 |  | 3,000 | 3,000 |
Interest in share capital - % in associates | 33.00% | [2] | 33.00% | 33.00% |
Plenogas distribuidora de gas [member] |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |
Current assets | R$ 828 |  | R$ 617 |  |
Non-current assets | 1,269 |  | 1,949 |  |
Current liabilities | 218 |  | 167 |  |
Non-current liabilities | 390 |  | 555 |  |
Equity | 1,489 | [2] | 1,844 |  |
Net revenue | 0 |  | 0 | R$ 0 |
Costs, operating expenses and income | 378 |  | 356 | 18 |
Net finance income and income and social contribution taxes | (2) |  | (3) | (31) |
Net income (loss) for the year | R$ 376 | [2] | R$ 353 | R$ (13) |
Number of shares or units held | 1,384,308 |  | 1,384,308 | 1,384,308 |
Interest in share capital - % in associates | 33.00% | [2] | 33.00% | 33.00% |
[1] | The subsidiary IPP holds an interest in Transportadora Sulbrasileira de Gás S.A. (“TSB”), which is primarily engaged in natural gas transportation services.
[2] | The subsidiary Cia. Ultragaz holds an interest in Metalúrgica Plus S.A. (“Metalplus”), which is primarily engaged in the manufacture and trading of LPG containers and has interest in Plenogás Distribuidora de Gás S.A. (“Plenogás”), which is primarily engaged in the marketing of LPG containers. Currently, the associates have their operational activities suspended.

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