EXHIBIT 8.1
Principal subsidiaries
The following is a list of Ternium’s subsidiaries at December 31, 2024.
| | | | | | | | | | | | | | | | | |
| Company | Country of Organization | Main activity | Percentage of ownership at December 31, |
| 2024 | 2023 | 2022 |
| | | | | |
| Ternium S.A. | Luxembourg | Holding | 100,00% | 100,00% | 100,00% |
| Ternium Investments S.à.r.l. | Luxembourg | Holding, financial services and agency trading activities | 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% | 62,57% | 62,57% |
| Prosid Investments S.A. (4) | Uruguay | Holding | 62,58% | 62,58% | 62,58% |
| Ternium Mexico S.A. de C.V. (5) | Mexico | Manufacturing and selling of steel products | 89,25% | 89,25% | 89,25% |
| Las Encinas S.A. de C.V. (6) | Mexico | Exploration, exploitation and pelletizing of iron ore | 89,25% | 89,25% | 89,25% |
| Ferropak Comercial S.A. de C.V. (6) | Mexico | Scrap services company | 89,25% | 89,25% | 89,25% |
| Transamerica E. & I. Trading Corp. (6) | USA | Scrap services company | 89,25% | 89,25% | 89,25% |
| Galvacer Chile S.A. (6) | Chile | Distributing company | 89,25% | 89,25% | 89,25% |
| Ternium Gas México S.A. de C.V. (7) | Mexico | Energy services company | 89,25% | 89,25% | 89,25% |
| Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. (8) | Mexico | Exploration, exploitation and pelletizing of iron ore | 44,62% | 44,62% | 44,62% |
| 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% | 66,49% | 66,49% |
| 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% |
| Vientos de Olavarría S.A. (15) | Argentina | Renewable energy projects. | 62,57% | 62,57% | 62,57% |
| Usinas Siderúrgicas de Minas Gerais S.A. (16) | Brazil | Manufacturing and selling of steel products | 23,30% | 23,30% | - |
| Mineração Usiminas S.A. (17) | Brazil | Exploration, exploitation and pelletizing of iron ore | 16,31% | 16,31% | - |
| Soluções Em Aço Usiminas S.A. (18) | Brazil | Manufacturing and selling of steel products | 16,05% | 16,05% | - |
| Usiminas Mecânica S.A. (19) | Brazil | Engineering and other services | 23,30% | 23,30% | - |
| Rios Unidos logistica e transporte de açõ Ltda. (20) | Brazil | Logistics and distribution of steel-derived products | - | 23,30% | - |
| Usiminas International S.À R.L. (21) | Luxembourg | Holding | 23,30% | 23,30% | - |
| Usiminas Participações E Logística S.A. (22) | Brazil | Logistics and distribution of steel-derived products | 17,48% | 17,48% | - |
| Metalcentro Ltda. (23) | Brazil | Other services | 23,30% | 23,30% | - |
| Ternium Participaçoes S.A.em liquidaçao (24) | Brazil | Holding | - | - | 100,00% |
| | | | | |
(1) Indirectly through Ternium Investments S.à.r.l. Total voting rights held: 100.00%.
(2) Since the second quarter of 2021, indirectly through Ternium Internacional España S.L. Total voting rights held 100.00%. Before that, indirectly through Ternium Investments S.à.r.l. total voting rights was 100.00% in 2020.
(3) Indirectly through Ternium Internacional España S.L. Total voting rights held 62.57%.
(4) Indirectly through Ternium Argentina S.A. and Ternium Procurement S.A. Total voting rights held 100.00%.
(5) Indirectly through Ternium Argentina S.A. and Ternium Internacional España S.L. Total voting rights held 100.00%.
(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%. The Company recognizes the assets, liabilities, revenue, and expenses in relation to its interest in the joint operation.
(9) Indirectly through Ternium Mexico S.A. de C.V. Total voting rights held: 74.50%.
(10) Indirectly through Ternium Internacional España S.L. and Ternium Mexico S.A. de C.V. Total voting rights held: 100.00%.
(11) Indirectly through Ternium Internacional España S.L. Total voting rights held: 100.00%.
(12) Indirectly through Ternium Internacional España S.L. Total voting rights held: 100.00%.
(13) Indirectly through Ternium Internacional España S.L. Total voting rights held: 51.00%.
(14) Indirectly through Ternium Investments S.à r.l. and Ternium Internacional España S.L. Total voting rights held 100.00%.
(15) Indirectly through Ternium Argentina S.A. Total voting rights held: 100.00%.
(16) Indirectly through Ternium Investments S.à r.l., Prosid Investments S.A. and Ternium Argentina S.A. Total voting rights held 42,57%.
(17) Indirectly through Usinas Siderúrgicas de Minas Gerais S.A. Total voting rights held 29,80%.
(18) Indirectly through Usinas Siderúrgicas de Minas Gerais S.A. Total voting rights held 29,32%.
(19) Indirectly through Usinas Siderúrgicas de Minas Gerais S.A. Total voting rights held 42,57%.
(20) This company was merged into Usinas Siderúrgicas de Minas Gerais S.A. as of April 25, 2024.
(21) Indirectly through Usinas Siderúrgicas de Minas Gerais S.A. Total voting rights held 42,57%.
(22) Indirectly through Usinas Siderúrgicas de Minas Gerais S.A. and Mineração Usiminas S.A. Total voting rights held 36.20%.
(23) Indirectly through Usinas Siderúrgicas de Minas Gerais S.A. and Usiminas Mecânica S.A. Total voting rights held 42.57%.
(24) This company was dissolved as of January 2, 2023.