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BASIS OF PRESENTATION (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure of notes and other explanatory information [Abstract] |
Disclosure of interests in subsidiaries | Detailed below are the companies whose financial statements have been consolidated and accounted for interest in these consolidated financial statements
|  | Country of |  |  |  | Percentage of ownership at December 31,
Company |  | Organization |  | Main activity |  | 2018 |  | 2017 |  | 2016
Ternium S.A. |  | Luxembourg |  | Holding |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Investments S.à.r.l. |  | Luxembourg |  | Holding |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Solutions A.G. (1) |  | Switzerland |  | Services |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Participaçoes S.A. (1) |  | Brazil |  | Holding |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Investments Switzerland AG (1) |  | Switzerland |  | Holding |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Internacional España S.L.U. (1) |  | Spain |  | Marketing of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium USA Inc. (1) |  | USA |  | Manufacturing and selling of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Argentina S.A. (2) |  | Argentina |  | Manufacturing and selling of steel products |  | 60.94 | % |  | 60.94 | % |  | 60.94 | %
Impeco S.A. (3) |  | Argentina |  | Manufacturing of pipe products |  | 60.97 | % |  | 60.97 | % |  | 60.97 | %
Prosid Investments S.A. (4) |  | Uruguay |  | Holding |  | 60.94 | % |  | 60.94 | % |  | 60.94 | %
Ternium Mexico S.A. de C.V. (5) |  | Mexico |  | Manufacturing and selling of steel products |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Hylsa S.A. de C.V. (6) |  | Mexico |  | Manufacturing and selling of steel products |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Las Encinas S.A. de C.V. (6) |  | Mexico |  | Exploration, exploitation and pelletizing of iron ore |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Ferropak Comercial S.A. de C.V. (6) |  | Mexico |  | Scrap services company |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Transamerica E. & I. Trading Corp. (6) |  | USA |  | Scrap services company |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Técnica Industrial S.A. de C.V. (6) |  | Mexico |  | Services |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Galvacer Chile SA (6) |  | Chile |  | Distributing company |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Imsamex Ecuador, S.A. (6) |  | Ecuador |  | Distributing company |  | 88.78 | % |  | 88.78 | % |  | 88.78 | %
Ternium Gas México S.A. de C.V. (7) |  | Mexico |  | Energy services company |  | 88.78 |  |  | 88.78 | % |  | 88.78 | %
Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. (8) |  | Mexico |  | Exploration, exploitation and pelletizing of iron ore |  | 44.39 | % |  | 44.39 | % |  | 44.39 | %
Peña Colorada Servicios S.A. de C.V. (8) |  | Mexico |  | Services |  | 44.39 | % |  | 44.39 | % |  | 44.39 | %
Exiros B.V. (8) |  | Netherlands |  | Procurement and trading services |  | 50.00 | % |  | 50.00 | % |  | 50.00 | %
Servicios Integrales Nova de Monterrey S.A. de C.V. (9) |  | Mexico |  | Medical and Social Services |  | 66.14 | % |  | 66.14 | % |  | 66.14 | %
Ternium Internacional Nicaragua S.A. |  | Nicaragua |  | Manufacturing and selling of steel products |  | 99.38 | % |  | 99.38 | % |  | 99.38 | %
Ternium Internacional Honduras S.A. de C.V. |  | Honduras |  | Manufacturing and selling of steel products |  | 99.18 | % |  | 99.18 | % |  | 99.18 | %
Ternium Internacional El Salvador S.A. de C.V. |  | El Salvador |  | Manufacturing and selling of steel products |  | 99.92 | % |  | 99.92 | % |  | 99.92 | %
Ternium Internacional Costa Rica S.A. |  | Costa Rica |  | Manufacturing and selling of steel products |  | 99.98 | % |  | 99.98 | % |  | 99.98 | %
Ternium Internacional Guatemala S.A. (10) |  | Guatemala |  | Selling of steel products |  | 99.98 | % |  | 99.98 | % |  | 99.98 | %
Ternium Colombia S.A.S. (formerly Ferrasa S.A.S.) (10) |  | Colombia |  | Manufacturing and selling of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium del Cauca S.A.S. (formerly Perfilamos del Cauca S.A.S.) (10) |  | Colombia |  | Manufacturing and selling of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Siderúrgica de Caldas S.A.S. (formerly Siderúrgica de Caldas S.A.S.) (10) |  | Colombia |  | Manufacturing and selling of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Tenigal S. de R.L. de C.V. (11) |  | Mexico |  | Manufacturing and selling of steel products |  | 51.00 | % |  | 51.00 | % |  | 51.00 | %
Ternium Internacional S.A. (12) |  | Uruguay |  | Holding and marketing of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Treasury Services S.A. (12) |  | Uruguay |  | Financial Services |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Internationaal B.V. (13) |  | Netherlands |  | Marketing of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
|  | Country of |  |  |  | Percentage of ownership at December 31,
Company |  | Organization |  | Main activity |  | 2018 |  | 2017 |  | 2016
Ternium International Inc. (13) |  | Panama |  | Marketing of steel products |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Procurement S.A. (14) |  | Uruguay |  | Procurement services |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Technology & Engineering Services S.A. (14) |  | Uruguay |  | Engineering and other services |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium International USA Corporation (15) |  | USA |  | Engineering and other services |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Ingeniería y Servicios de México S.A. de C.V. (16) |  | Mexico |  | Engineering and other services |  | 99.89 | % |  | 99.89 | % |  | 99.89 | %
Soluciones Integrales de Gestión S.A. (17) |  | Argentina |  | Other services |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Ternium Staal B.V. (18) |  | Netherlands |  | Holding and marketing of steel products |  | 100.00 | % |  | 100.00 | % |  | — |
Ternium Brasil Ltda. (18) |  | Brazil |  | Manufacturing and selling of steel products |  | 100.00 | % |  | 100.00 | % |  | — |
Ternium del Atlántico S.A.S (19) |  | Colombia |  | Manufacturing and selling of steel products |  | 100.00 | % |  | 100.00 | % |  | — |
Ternium Solutions S.A. (formerly Tericer Trading S.A.) (20) |  | Uruguay |  | Other services |  | 100.00 | % |  | — |  |  | — |
Acedor, S.A. de C.V. (21) |  | Mexico |  | Holding |  | — |  |  | 88.78 | % |  | 88.78 | %
Ecosteel Gestao de Efuentes Industriais S.A. (22) |  | Brazil |  | Other services |  | — |  |  | 100.00 | % |  | — |
Galvatubing Inc (23) |  | USA |  | Manufacturing and selling of pipe Products |  | — |  |  | 88.78 | % |  | 88.78 | %
Galvamet America Corp (24) |  | USA |  | Manufacturing and selling of insulated panel products |  | — |  |  | 88.78 | % |  | 88.78 | %
Ternium Internacional de Colombia S.A.S. (25) |  | Colombia |  | Marketing of steel products |  | — |  |  | 100.00 | % |  | 100.00 | %
Ecosteel Gestao de Águas Industriais S.A. (26) |  | Brazil |  | Other services |  | — |  |  | 100.00 | % |  | — |
Galvacer America Inc (27) |  | USA |  | Distributing company |  | — |  |  | — |  |  | 88.78 | %
(1) Indirectly through Ternium Investments S.à.r.l. Total voting rights held: 100.00%. (2) During the fourth quarter of 2017, Siderar S.A.I.C. changed its business name to Ternium Argentina S.A. Indirectly through Ternium Internacional España S.L.U. Total voting rights held: 60.94%. (3) Since the fourth quarter of 2017, indirectly through Ternium Argentina S.A. and Soluciones Integrales de Gestión S.A Total voting rights held 100.00%. Before that, indirectly through Ternium Argentina S.A. and Ternium Internacional S.A. (4) Since the fourth quarter 2017, indirectly through Ternium Argentina S.A. and Ternium Procurement S.A. Total voting rights held 100.00%. Before that indirectly through Ternium Argentina S.A. and Ternium Internacional S.A. (5) Since the fourth quarter 2017, indirectly through Ternium Argentina S.A. and Ternium Internacional España S.L.U. Total voting rights held 100.00%. Before that indirectly through Ternium Argentina S.A., Ternium Internacional S.A. and Ternium Internacional España S.L.U. (6) Indirectly through Ternium Mexico S.A. de C.V. Total voting rights held: 100.00%. (7) Indirectly through Ternium Mexico S.A. de C.V. and Tenigal S. de R.L. de C.V. Total voting rights held: 100.00%. (8) Total voting rights held: 50.00%. (9) Indirectly through Ternium Mexico S.A. de C.V. Total voting rights held: 74.50%. (10) Indirectly through Ternium Internacional España S.L.U.. Total voting rights held: 100.00%. (11) Indirectly through Ternium Internacional España S.L.U. Total voting rights held: 51.00%. (12) Indirectly through Ternium Investments Switzerland AG. Total voting rights held: 100.00%. (13) Since the third quarter 2017, indirectly through Ternium Investments S.à.r.l. Total voting rights held 100.00%. Before that, indirectly through Ternium Investments Switzerland AG. (14) Since the third quarter of 2017, indirectly through Ternium Internacional España S.L.U. Total voting rights held 100.00%. Before that, indirectly through Ternium Investments Switzerland AG. (15) Since the fourth quarter 2017, indirectly through Ternium Investments S.à.r.l. Total voting rights held: 100.00%. Before that, indirectly through Ternium Internacional S.A. (16) Indirectly through Technology & Engineering Services S.A. and Ternium México S.A. de C.V. Total voting rights held 100.00%. (17) Since the third quarter of 2017, indirectly through Ternium Investments Sà.r.l and Ternium Internacional España S.L.U. Total voting rights held 100.00%. Before that indirectly throgh Ternium Investments S.à.r.l and Technology and Engineering Services S.A. (18) Indirectly through Ternium Investments S.à.r.l. Total voting right held: 100.00%. (19) Indirectly through Ternium Internacional España S.L.U. Total voting rights held: 100.00%. (20) Indirectly through Ternium Investments S.à.r.l. Total voting rights held: 100.00%. (21) Merged with Ternium México as of December 31, 2018. (22) This company was dissolved as of May 4, 2018. (23) This company was dissolved as of July 19, 2018. (24) On August 3, 2018, the shareholders gave its consent to proceed with the liquidation and dissolution of this subsidiary. (25) This company was dissolved as of October 3, 2018. (26) This company was dissolved as of December 3, 2018. (27)This company was dissolved as of December 11, 2017.

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