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CONSOLIDATED FINANCIAL STATEMENTS - Subsidiaries (Details)

12 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Dec. 31, 2019

Gerdau GTL Spain S.L.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Gerdau Internacional Empreendimentos Ltda. - Grupo Gerdau

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Gerdau Ameristeel Corporation and subsidiaries

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[2]

100.00%

100.00%

100.00%

Gerdau Acominas S.A.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

99.86%

99.86%

99.83%

Gerdau Acos Longos S.A. and subsidiary

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[3]

99.83%

99.82%

99.82%

Gerdau Steel Inc.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Gerdau Holdings Inc. and subsidiary

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[4]

100.00%

100.00%

100.00%

Paraopeba - Fixed-income investment fund

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[5],[6]

70.62%

89.26%

96.96%

Percent of participation in investment fund

73.54%

92.58%

98.07%

Gerdau Hungria Holdings Limited Liability Company

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

GTL Equity Investments Corp.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Empresa Siderurgica del Peru S.A.A. - Siderperu

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

90.03%

90.03%

90.03%

Gerdau GTL Mxico, S.A. de C.V. and subsidiary

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[7]

100.00%

100.00%

100.00%

Seiva S.A. Florestas e Industrias

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

97.73%

97.73%

97.73%

Gerdau Laisa S.A.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Sipar Gerdau Inversiones S.A.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

99.99%

99.99%

99.99%

Sipar Aceros S.A. and subsidiary

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[8]

99.98%

99.98%

99.98%

Sizuca - Siderrgica Zuliana, C. A.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

GTL Trade Finance Inc.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Gerdau Trade Inc.

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1]

100.00%

100.00%

100.00%

Gerdau Next S.A. and subsidiaries

Significant consolidated subsidiaries

Equity Interests (as a percent)

^[1],[9]

100.00%

[1]	The voting capital is substantially equal to the total capital. The interests reported represent the ownership percentage held directly and indirectly in the subsidiary.
[2]	Subsidiaries: Gerdau Ameristeel US Inc., Chaparral Steel Company.
[3]	Subsidiaries: Gerdau Açominas Overseas Ltd. and Siderúrgica Latino-Americana S.A.
[4]	Subsidiary: Gerdau MacSteel Inc.
[5]	Fixed-income investment fund managed by Bank JP Morgan S.A.
[6]	The percentage of participation including interest of the parent company Metalúrgica Gerdau S.A. in the investment fund is 73.54% in 2021, 92.58% in 2020 and 98.07% in 2019
[7]	Subsidiary: GTL Servicios Administrativos México, S.A. de C.V.
[8]	Subsidiary: Siderco S.A.
[9]	Subsidiaries: G2L Logística Ltda, G2base Fundações e Contenções Ltda and Gerdau Grafeno Ltda.

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- Definition

The proportion of participation in an investment fund.

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- Definition

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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