| Company | Country of Organization | Main activity | Percentage of ownership at December 31, | |||||||||||||||||||||||||||||
| 2022 | 2021 | 2020 | ||||||||||||||||||||||||||||||
| / | ||||||||||||||||||||||||||||||||
| 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 Internacional España S.L. (1) | Spain | Holding and marketing of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium Solutions S.A. (1) | Uruguay | Other services | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium Internationaal B.V. (1) | Netherlands | Marketing of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium USA Inc. (2) | USA | Manufacturing and selling of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium Argentina S.A. (3) | Argentina | Manufacturing and selling of flat steel products | 62.57 | % | 62.49 | % | 62.46 | % | ||||||||||||||||||||||||
| Prosid Investments S.A. (4) | Uruguay | Holding | 62.58 | % | 62.49 | % | 62.46 | % | ||||||||||||||||||||||||
| Ternium Mexico S.A. de C.V. (5) | Mexico | Manufacturing and selling of steel products | 89.25 | % | 89.22 | % | 89.21 | % | ||||||||||||||||||||||||
| Las Encinas S.A. de C.V. (6) | Mexico | Exploration, exploitation and pelletizing of iron ore | 89.25 | % | 89.22 | % | 89.21 | % | ||||||||||||||||||||||||
| Ferropak Comercial S.A. de C.V. (6) | Mexico | Scrap services company | 89.25 | % | 89.22 | % | 89.21 | % | ||||||||||||||||||||||||
| Transamerica E. & I. Trading Corp. (6) | USA | Scrap services company | 89.25 | % | 89.22 | % | 89.21 | % | ||||||||||||||||||||||||
| Galvacer Chile S.A. (6) | Chile | Distributing company | 89.25 | % | 89.22 | % | 89.21 | % | ||||||||||||||||||||||||
| Ternium Gas México S.A. de C.V. (7) | Mexico | Energy services company | 89.25 | % | 89.22 | % | 89.21 | % | ||||||||||||||||||||||||
| Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. (8) | Mexico | Exploration, exploitation and pelletizing of iron ore | 44.62 | % | 44.61 | % | 44.61 | % | ||||||||||||||||||||||||
| 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 | 66.49 | % | 66.47 | % | 66.47 | % | ||||||||||||||||||||||||
| 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 | Manufacturing and selling of steel products | 99.98 | % | 99.98 | % | 99.98 | % | ||||||||||||||||||||||||
| Ternium Colombia S.A.S. (11) | Colombia | Manufacturing and selling of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium del Cauca S.A.S. (11) | Colombia | Manufacturing and selling of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium del Atlántico S.A.S (11) | Colombia | Manufacturing and selling of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium Procurement S.A. (11) | Uruguay | Marketing of steel products and procurement services | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Technology & Engineering Services S.A. (11) | Uruguay | Engineering and other services | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium Brasil Ltda. (12) | Brazil | Manufacturing and selling of steel products | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Tenigal S. de R.L. de C.V. (13) | Mexico | Manufacturing and selling of steel products | 51.00 | % | 51.00 | % | 51.00 | % | ||||||||||||||||||||||||
| Soluciones Integrales de Gestión S.A. (14) | Argentina | Other services | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Ternium Participaçoes S.A. em liquidaçao (14) | Brazil | Holding | 100.00 | % | 100.00 | % | 100.00 | % | ||||||||||||||||||||||||
| Vientos de Olavarría S.A. (15) | Argentina | Renewable energy project | 62.57 | % | — | — | ||||||||||||||||||||||||||
| Ternium Siderúrgica de Caldas S.A.S. (16) | Colombia | Manufacturing and selling of steel products | — | 100.00 | % | 100.00 | % | |||||||||||||||||||||||||
| Impeco S.A. (17) | Argentina | Manufacturing of pipe products | — | 62.49 | % | 62.49 | % | |||||||||||||||||||||||||
| Hylsa S.A. de C.V. (18) | Mexico | Manufacturing and selling of steel products | — | — | 89.21 | % | ||||||||||||||||||||||||||
| Company | Country of Organization | Main activity | Percentage of ownership at December 31, | |||||||||||||||||||||||||||||
| 2022 | 2021 | 2020 | ||||||||||||||||||||||||||||||
| Técnica Industrial S.A. de C.V. (18) | Mexico | Services | — | — | 89.21 | % | ||||||||||||||||||||||||||
| Peña Colorada Servicios S.A. de C.V. (19) | Mexico | Services | — | — | 44.61 | % | ||||||||||||||||||||||||||
| Ternium Treasury Services S.A. (20) | Uruguay | Financial Services | — | — | 100.00 | % | ||||||||||||||||||||||||||