XML 61 R39.htm IDEA: XBRL DOCUMENT
v3.8.0.1

CONSOLIDATED FINANCIAL STATEMENTS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
CONSOLIDATED FINANCIAL STATEMENTS |
Schedule of significant consolidated subsidiaries |
|  |  |  | Equity Interests |
|  |  |  | Total capital (*) |
Consolidated company |  | Country |  | 2017 |  | 2016 |  | 2015 |
Gerdau GTL Spain S.L. |  | Spain |  | 100.00 |  | 100.00 |  | 100.00 |
Gerdau Internacional Empreendimentos Ltda. - Grupo Gerdau |  | Brazil |  | 100.00 |  | 100.00 |  | 100.00 |
Gerdau Ameristeel Corporation and subsidiaries (1) |  | USA/Canada |  | 100.00 |  | 100.00 |  | 100.00 |
Gerdau Açominas S.A. |  | Brazil |  | 99.36 |  | 99.35 |  | 99.35 |
Gerdau Aços Longos S.A. and subsidiary (2) |  | Brazil |  | 99.12 |  | 99.11 |  | 99.11 |
Gerdau Steel Inc. |  | Canada |  | 100.00 |  | 100.00 |  | 100.00 |
Gerdau Holdings Inc. and subsidiary (3) |  | USA |  | 100.00 |  | 100.00 |  | 100.00 |
Paraopeba - Fixed-income investment fund (4) (**) |  | Brazil |  | 10.69 |  | 70.93 |  | 65.75 |
Gerdau Holdings Europa S.A. and subsidiaries |  | Spain |  | — |  | — |  | 100.00 |
Gerdau América Latina Participações S.A. |  | Brazil |  | — |  | 99.12 |  | 99.12 |
Gerdau Chile Inversiones Ltda. and subsidiaries (5) |  | Chile |  | 99.00 |  | 99.00 |  | 99.99 |
Gerdau Aços Especiais S.A. |  | Brazil |  | — |  | 99.55 |  | 99.56 |
Gerdau Hungria Holdings Limited Liability Company and subsidiaries (6) |  | Hungary |  | 100.00 |  | 100.00 |  | 100.00 |
GTL Equity Investments Corp. |  | British Virgin Islands |  | 100.00 |  | 100.00 |  | 100.00 |
Empresa Siderúrgica del Perú S.A.A. - Siderperú |  | Peru |  | 90.03 |  | 90.03 |  | 90.03 |
Diaco S.A. and subsidiary (note 3.4) |  | Colombia |  | — |  | 99.68 |  | 99.68 |
Gerdau GTL México, S.A. de C.V. and subsidiaries (7) |  | Mexico |  | 100.00 |  | 100.00 |  | 100.00 |
Seiva S.A. - Florestas e Indústrias |  | Brazil |  | 97.73 |  | 97.73 |  | 97.73 |
Itaguaí Com. Imp. e Exp. Ltda. |  | Brazil |  | — |  | 100.00 |  | 100.00 |
Gerdau Laisa S.A. |  | Uruguai |  | 100.00 |  | 100.00 |  | 100.00 |
Sipar Gerdau Inversiones S.A. |  | Argentina |  | 99.99 |  | 99.99 |  | 99.99 |
Sipar Aceros S.A. and subsidiary (8) |  | Argentina |  | 99.98 |  | 99.96 |  | 99.96 |
Cleary Holdings Corp. |  | Colombia |  | — |  | — |  | 100.00 |
Sizuca - Siderúrgica Zuliana, C. A. |  | Venezuela |  | 100.00 |  | 100.00 |  | 100.00 |
GTL Trade Finance Inc. |  | British Virgin Islands |  | 100.00 |  | 100.00 |  | 100.00 |
Gerdau Trade Inc. |  | British Virgin Islands |  | 100.00 |  | 100.00 |  | 100.00 |
Gerdau Steel India Ltd. |  | India |  | 98.90 |  | 98.90 |  | 98.90 |
(*) The voting capital is substantially equal to the total capital. The interests reported represent the ownership percentage held directly and indirectly in the subsidiary. (**) The percentage of participation including interest of the parent company Metalurgica Gerdau S.A. in the investment fund is 51.11% in 2017, 91.58% in 2016 and 82.64% in 2015. (1) Subsidiaries: Gerdau Ameristeel US Inc., Gerdau Reinforcing Steel, Gerdau Ameristeel Sayreville Inc., TAMCO Steel, Chaparral Steel Company. (2) Subsidiary: Gerdau Açominas Overseas Ltd. (3) Subsidiary: Gerdau MacSteel Inc. (4) Fixed-income investment fund managed by Banco JP Morgan S.A.. (5) Subsidiaries: Aza Participaciones S.A., Gerdau Aza S.A., Armacero Matco S.A., Aceros Cox Comercial S.A., Salomon Sack S.A.. (6) Subsidiaries: Gerdau Hungria y Cia SRC, Bogey Holding Company Spain S.L. (7) Subsidiaries: Sidertul S.A. de C.V. and GTL Servicios Administrativos México, S.A. de C.V.. (8) Subsidiary: Siderco S.A.
Schedule of interests in joint ventures |
|  |  |  | Equity Interests |
|  |  |  | Total capital(*) |
Joint ventures |  | Country |  | 2017 |  | 2016 |  | 2015 |
Bradley Steel Processors |  | Canada |  | 50.00 |  | 50.00 |  | 50.00 |
MRM Guide Rail |  | Canada |  | 50.00 |  | 50.00 |  | 50.00 |
Gerdau Corsa S.A.P.I. de CV |  | Mexico |  | 50.00 |  | 50.00 |  | 50.00 |
Gerdau Metaldom Corp. |  | Dominican Rep. |  | 45.00 |  | 45.00 |  | 45.00 |
Gerdau Summit Aços Fundidos e Forjados S.A. |  | Brazil |  | 58.73 |  | — |  | — |
Diaco S.A. |  | Colombia |  | 49.87 |  | — |  | — |
(*)The voting capital is substantially equal to the total capital. The interests reported represent the ownership percentage held directly and indirectly held in the joint venture.
Schedule of summarized financial information of the joint ventures |
|  | Joint ventures |
|  | 2017 |  | 2016 |
Net income |  | (91,553 | ) | (126,723 | )
Total comprehensive income |  | (91,553 | ) | (126,723 | )
Schedule of interests in associate companies |
|  |  |  | Equity interests |
|  |  |  | Total capital (*) |
Associate companies |  | Country |  | 2017 |  | 2016 |  | 2015 |
Dona Francisca Energética S.A. |  | Brazil |  | 51.82 |  | 51.82 |  | 51.82 |
Corsa Controladora, S.A. de C.V. and subsidiaries |  | Mexico |  | 49.00 |  | 49.00 |  | 49.00 |
Corporación Centroamericana del Acero S.A. and subsidiaries |  | Guatemala |  | — |  | — |  | 30.00 |
(*)The voting capital is substantially equal to the total capital. The interests reported represent the ownership percentage held directly and indirectly.
Schedule of summarized financial information of the associate companies |
|  | Associate Companies |
|  | 2017 |  | 2016 |
Net income |  | 26,099 |  | 141,023 |
Total comprehensive income |  | 26,099 |  | 141,023 |
Schedule of cash paid for business combination |
Companies / interest acquired |  | 2017 |  | 2016 |  | 2015 |
Business Combination |  |  |  |  |  |  |
Armacero Industrial y Comercial S.A. |  | — |  | — |  | 20,929 |
|  | — |  | — |  | 20,929 |
Interest increase in subsidiaries |  |  |  |  |  |  |
Gerdau Aços Longos S.A., Gerdau Açominas S.A., Gerdau Aços Especiais S.A. and Gerdau América Latina Participações S.A. |  | — |  | — |  | 339,068 |
|  | — |  | — |  | 339,068 |

X
- References No definition available. + Details
Name: | ggb_DisclosureOfInformationAboutConsolidatedFinancialStatementsAbstract
Namespace Prefix: | ggb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the main financial information of jointly-controlled entities. + References No definition available. + Details
Name: | ggb_DisclosureOfSignificantInvestmentsInJointlyControlledEntitiesTableTextBlock
Namespace Prefix: | ggb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of detailed information about business combinations. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Section Disclosures application of paragraphs 59 and 61 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=F4301424&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of interests in associates. [Refer: Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph 2 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_2_b_ii&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfInterestsInAssociatesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of joint operations. [Refer: Joint operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B4 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B4_c&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfJointOperationsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of associates. [Refer: Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_17_b&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_16_b&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B4 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B4_d&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of subsidiaries. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_17_b&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_16_b&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B4 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B4_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration