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SEGMENT INFORMATION | 12 Months Ended
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Dec. 31, 2023
Disclosure of entity's operating segments [Abstract] |
SEGMENT INFORMATION | SEGMENT INFORMATION As of December 31, 2023, the Company is organized in three operating segments: Steel, Mining and Usiminas. The CODM is still reviewing the new business structure to allocate resources and to assess the performance in future periods. The Steel segment includes the sales of steel products done by the Company’s subsidiaries, other than Usiminas, which comprises mainly slabs, hot and cold rolled products, coated products, roll-formed and tubular products, billets, bars and other products. The Mining segment includes the sales of mining products, done by the Company’s subsidiaries, other than Usiminas, mainly iron ore and pellets, and comprises the mining activities of Las Encinas, an iron ore mining company in which Ternium holds a 100% equity interest and the 50% of the operations and results performed by Peña Colorada, another iron ore mining company in which Ternium maintains that same percentage over its equity interest. The Usiminas segment included in the Company as from July 2023, following the increase of the participation, includes the sales of steel and mining products done by Usiminas. Usiminas’ activities include iron ore extraction, steel transformation, production of capital goods and logistics. Usiminas manufactures and sells various products and raw materials, such as flat steel, iron ore, stamped steel parts for the automotive industry and products for the civil construction and capital goods industry. Ternium’s Chief Executive Officer (“CEO”) functions as the Company’s Chief Operating Decision Maker (“CODM”). The various geographic regions operate as an integrated steel producer. The CEO allocates resources and assesses performance of the Steel Segment as an integrated business and of the Mining Segment. The CEO uses “Operating income – Management view” as per the below table as the key performance measure which differs from operating income determined in accordance with IFRS principally as follows: •The use of direct cost methodology to calculate the inventories, while under IFRS is at full cost, including absorption of production overheads and depreciation. •The use of costs based on previously internally defined cost estimates, while, under IFRS, costs are calculated at historical cost (with the FIFO method). •In the case of Usiminas, the use of costs based in the weighted average cost, while, under IFRS, costs are calculated under the FIFO method. •Other non-significant differences. 5. SEGMENT INFORMATION (continued)
|  | Year ended December 31, 2023
|  | Steel |  | Mining |  | Usiminas |  | Inter-segment eliminations |  | Total
Operating income - Management view |  | 2,404,189 |  |  | (58,037) |  |  | 64,423 |  |  | (6,401) |  |  | 2,404,174 |
Reconciliation: |  |  |  |  |  |  |  |  |  |
Differences in Cost of sales |  |  |  |  |  |  |  |  |  | (206,160) |
Operating income - Under IFRS |  |  |  |  |  |  |  |  |  | 2,198,014 |
Financial income (expense), net |  |  |  |  |  |  |  |  |  | 123,454 |
Equity in earnings (losses) of non-consolidated companies |  |  |  |  |  |  |  |  |  | 105,305 |
Effect related to the increase of the participation in Usiminas |  |  |  |  |  |  |  |  |  | (171,045) |
Recycling of other comprehensive income related to Usiminas |  |  |  |  |  |  |  |  |  | (934,946) |
Income before income tax expense - IFRS |  |  |  |  |  |  |  |  |  | 1,320,782 |
Net sales from external customers |  | 14,909,209 |  |  | 96 |  |  | 2,700,787 |  |  | — |  |  | 17,610,092 |
Net sales from transactions with other operating segments of the same entity |  | 285,025 |  |  | 500,401 |  |  | 31,620 |  |  | (817,046) |  |  | — |
Depreciation and amortization |  | (520,328) |  |  | (107,546) |  |  | (29,819) |  |  | — |  |  | (657,693) |
|  | Year ended December 31, 2022
|  | Steel |  | Mining |  | Usiminas |  | Inter-segment eliminations |  | Total
Operating income - Management view |  | 2,556,949 |  |  | 3,716 |  |  | — |  |  | 10,500 |  |  | 2,571,165 |
Reconciliation: |  |  |  |  |  |  |  |  |  |
Differences in Cost of sales |  |  |  |  |  |  |  |  |  | 128,354 |
Operating income - Under IFRS |  |  |  |  |  |  |  |  |  | 2,699,519 |
Financial income (expense), net |  |  |  |  |  |  |  |  |  | (70,133) |
Equity in earnings (losses) of non-consolidated companies |  |  |  |  |  |  |  |  |  | 37,114 |
Income before income tax expense - IFRS |  |  |  |  |  |  |  |  |  | 2,666,500 |
Net sales from external customers |  | 16,414,334 |  |  | 132 |  |  | — |  |  | — |  |  | 16,414,466 |
Net sales from transactions with other operating segments of the same entity |  | — |  |  | 410,636 |  |  | — |  |  | (410,636) |  |  | — |
Depreciation and amortization |  | (523,818) |  |  | (92,674) |  |  | — |  |  | — |  |  | (616,492) |
|  | Year ended December 31, 2021
|  | Steel |  | Mining |  | Usiminas |  | Inter-segment eliminations |  | Total
Operating income - Management view |  | 4,210,135 |  |  | 204,070 |  |  | — |  |  | 1,586 |  |  | 4,415,791 |
Reconciliation: |  |  |  |  |  |  |  |  |  |
Differences in Cost of sales |  |  |  |  |  |  |  |  |  | 855,345 |
Operating income - Under IFRS |  |  |  |  |  |  |  |  |  | 5,271,136 |
Financial income (expense), net |  |  |  |  |  |  |  |  |  | 92,462 |
Equity in earnings (losses) of non-consolidated companies |  |  |  |  |  |  |  |  |  | 400,732 |
Income before income tax expense - IFRS |  |  |  |  |  |  |  |  |  | 5,764,330 |
Net sales from external customers |  | 16,043,033 |  |  | 47,711 |  |  | — |  |  | — |  |  | 16,090,744 |
Net sales from transactions with other operating segments of the same entity |  | — |  |  | 478,559 |  |  | — |  |  | (478,559) |  |  | — |
Depreciation and amortization |  | (528,144) |  |  | (63,646) |  |  | — |  |  | — |  |  | (591,790) |
Information on segment assets is not disclosed as it is not reviewed by the CEO. 5. SEGMENT INFORMATION (continued) GEOGRAPHICAL INFORMATION The Company had no revenues attributable to the Company's country of incorporation (Luxembourg) in 2023 and 2022. In 2021 the Company had revenues attributable to Luxembourg related to a contract acquired as part of the acquisition of the participation in Ternium Brasil Ltda. For purposes of reporting geographical information, net sales are allocated based on the customer's location. Allocation of depreciation and amortization is based on the geographical location of the underlying assets.
|  | Year ended December 31, 2023
|  | Mexico |  | Southern region |  | Brazil |  | Other markets |  | Total
Net sales |  | 9,419,873 |  |  | 3,588,651 |  |  | 2,518,764 |  |  | 2,082,804 |  |  | 17,610,092 |
Non-current assets (2) |  | 4,965,628 |  |  | 878,642 |  |  | 2,474,178 |  |  | 315,287 |  |  | 8,633,735 |
|  | Year ended December 31, 2022
|  | Mexico |  | Southern region |  | Brazil (1) |  | Other markets |  | Total
Net sales |  | 8,949,104 |  |  | 3,853,390 |  |  | 743,713 |  |  | 2,868,259 |  |  | 16,414,466 |
Non-current assets (2) |  | 4,769,161 |  |  | 859,351 |  |  | 1,265,013 |  |  | 312,771 |  |  | 7,206,296 |
|  | Year ended December 31, 2021
|  | Mexico |  | Southern region |  | Brazil |  | Other markets |  | Total
Net sales |  | 8,990,868 |  |  | 3,377,596 |  |  | 1,122,518 |  |  | 2,599,762 |  |  | 16,090,744 |
Non-current assets (2) |  | 4,789,273 |  |  | 861,149 |  |  | 1,373,377 |  |  | 310,035 |  |  | 7,333,834 |
(1) The non-current assets value includes the impact of the impairment charge of $99.0 million recognized in the Brazil CGU. (2) Includes Property, plant and equipment and Intangible assets REVENUES BY PRODUCT
|  | Year ended December 31,
|  | 2023 |  | 2022 |  | 2021
Slabs |  | 177,240 |  |  | 640,231 |  |  | 1,304,437 |
Hot rolled (1) |  | 7,913,232 |  |  | 6,991,466 |  |  | 6,356,576 |
Cold rolled |  | 2,379,499 |  |  | 1,951,702 |  |  | 1,990,143 |
Coated (2) |  | 5,708,328 |  |  | 5,704,765 |  |  | 5,303,394 |
Roll-formed and tubular (3) |  | 789,255 |  |  | 660,830 |  |  | 659,609 |
Billets, round bars and others |  | 45,351 |  |  | 142,511 |  |  | 167,138 |
Other products (4) |  | 597,187 |  |  | 322,961 |  |  | 309,447 |
TOTAL SALES |  | 17,610,092 |  |  | 16,414,466 |  |  | 16,090,744 |
(1) Hot rolled includes hot rolled flat products, merchant bars, reinforcing bars, stirrups and rods. (2) Coated includes tin plate and galvanized products. (3) Roll-formed and tubular includes pre-engineered metal building systems, tubes, beams, insulated panels, roofing and cladding, roof tiles and steel decks. (4) Other products include mainly sales of energy and pig iron.

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- Definition The entire disclosure for operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&doctype=Standard&dita_xref=IFRS08_g20-24_TI -URIDate 2023-03-23 + Details
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