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v3.21.1

Note 26 - Contingencies, Commitments and Restrictions On the Distribution of Profits (Details Textual) $ / shares in Units, R$ in Thousands, $ in Thousands, € in Millions |  |  | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 09, 2018 USD ($) | Sep. 01, 2013 $ / shares shares | Dec. 31, 2020 USD ($) | Dec. 31, 2020 EUR (€) | Dec. 31, 2020 BRL (R$) | Dec. 31, 2020 USD ($) | Nov. 19, 2020 BRL (R$) | Nov. 19, 2020 USD ($) | Sep. 28, 2020 BRL (R$) | Sep. 28, 2020 USD ($) | Dec. 31, 2019 | Oct. 10, 2018 BRL (R$)
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Term of supply contract (Year) |  |  | 9 years |  |  |  |  |  |  |  |  |
Performance Guarantees Issued |  |  |  |  |  | $ 2,500,000 |  |  |  |  |  |
Techgen s.a. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  | 22.00% |  |  |  |  |  |  |  |  |
Proportion of corporate guarantee covering obligations |  |  |  | 22.00% | 22.00% | 22.00% |  |  |  |  | 22.00% |
Confab [member] | Chubb [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Payments for settlement | $ 3,500 |  |  |  |  |  |  |  |  |  |  |
Settlement, amount ordered to pay | R$ |  |  |  |  |  |  |  |  |  |  |  | R$ 13,100
Confab [member] | Veracel Celulose S.A. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Settlement, amount ordered to pay, insurance deductible |  |  |  |  | R$ 69,900 | $ 13,500 |  |  |  |  |  |
Settlement, amount ordered to pay, damages |  |  |  |  | 59,900 | 11,500 |  |  |  |  |  |
Tribunal de Contas da Uniao [member] | Legal proceedings contingent liability [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  |  |  |  | R$ 30,600 | $ 5,900 |  |  |  |
Tribunal de Contas da Uniao [member] | Legal proceedings contingent liability [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Alleged overprice that will be reduced amount |  |  |  |  |  |  |  |  | R$ 9,000 | $ 1,700 |  |
Tribunal de Contas da Uniao [member] | Legal proceedings contingent liability [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Alleged overprice that will be reduced amount |  |  |  |  |  |  |  |  | R$ 401 | $ 77 |  |
Transportadora de Gas del Norte S.A. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Term of supply contract (Year) |  |  | 14 years |  |  |  |  |  |  |  |  |
Purchase commitments |  |  |  |  |  | 16,800 |  |  |  |  |  |
Transportadora de Gas del Norte S.A. [member] | Techgen s.a. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Term of supply contract (Year) |  |  | 25 years |  |  |  |  |  |  |  |  |
Praxair S.A. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Purchase commitments |  |  |  |  |  | 31,000 |  |  |  |  |  |
Graftech [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Purchase commitments |  |  |  |  |  | 10,900 |  |  |  |  |  |
Air Liquide Mexico S. de R.L. de C.V. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Purchase commitments |  |  |  |  |  | 19,000 |  |  |  |  |  |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] | Tax contingent liability [member] | BRAZIL |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  |  | R$ 57,200 | $ 11,000 |  |  |  |  |  |
Fine imposed, percentage of allegedly undue credits |  |  |  | 75.00% | 75.00% | 75.00% |  |  |  |  |  |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] | Companhia Siderúrgica Nacional [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Tag-along tender offer to non-controlling interests, percentage |  | 80.00% |  |  |  |  |  |  |  |  |  |
Tag-along tender offer to non-controlling interests (in BRL per share) | $ / shares |  | $ 28.8 |  |  |  |  |  |  |  |  |  |
Tag-along tender offer to non-controlling interests, shares (in shares) | shares |  | 182,609,851 |  |  |  |  |  |  |  |  |  |
Tag-along tender offer to non-controlling interests, contingent liability |  | 17.90% |  |  |  |  |  |  |  |  |  |
DALMINE S.p.A. [member] | Tax contingent liability related to fiscal year 2014 [member] | ITALY |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | € 25.7 |  | $ 31,600 |  |  |  |  |  |
DALMINE S.p.A. [member] | Tax contingent liability related to fiscal year 2014, principal [member] | ITALY |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | 20.7 |  | 25,500 |  |  |  |  |  |
DALMINE S.p.A. [member] | Tax contingent liability related to fiscal year 2014, interest and penalties [member] | ITALY |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | 5.0 |  | 6,100 |  |  |  |  |  |
DALMINE S.p.A. [member] | Tax contingent liability related to fiscal year 2015 [member] | ITALY |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | 10.5 |  | 12,900 |  |  |  |  |  |
DALMINE S.p.A. [member] | Tax contingent liability related to fiscal year 2015, principal [member] | ITALY |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | 8.1 |  | 10,000 |  |  |  |  |  |
DALMINE S.p.A. [member] | Tax contingent liability related to fiscal year 2015, interest and penalties [member] | ITALY |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | € 2.4 |  | 2,900 |  |  |  |  |  |
IPSCO Tubulars, Inc. | Commitments and guarantees |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  |  |  | 498,300 |  |  |  |  |  |
Master distribution agreement, term (Year) |  |  | 6 years |  |  |  |  |  |  |  |  |
Master distribution agreement, term, available extension (Month) |  |  | 12 months |  |  |  |  |  |  |  |  |
Penalties imposed |  |  | $ 0 |  |  |  |  |  |  |  |  |
IPSCO Tubulars, Inc. | Product liability litigation |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  |  |  | 17,600 |  |  |  |  |  |
IPSCO Tubulars, Inc. | Product liability litigation | Legal proceedings contingent liability [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  |  |  | 15,000 |  |  |  |  |  |
TENARIS BAY CITY, INC. [member] | Nucor Steel Memphis Inc. [member] |  |  |  |  |  |  |  |  |  |  |  |
Contingencies, commitments and restrictions on the distribution of profits |  |  |  |  |  |  |  |  |  |  |  |
Term of supply contract (Year) |  |  | 3 years |  |  |  |  |  |  |  |  |
Purchase commitments |  |  |  |  |  | $ 113,400 |  |  |  |  |  |
Purchase commitments percentage to be made |  |  |  | 75.00% | 75.00% | 75.00% |  |  |  |  |  |

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