Company: MT
Filing Date: 2025-03-10
Form Type: 20-F
Source: 0001243429-25-000017
Chunk: 142

Company: ArcelorMittal
Filing Date: 2025-03-10
Form: 20-F
Chunk 142
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 Itabira groups compose the base of the Paleoproterozoic Minas Supergroup. The Cauê formation rocks are covered by dolomites and marbles, and sometimes weathered phylites and schists, belonging to the Gandarela formation. In addition to the open pit mine, the Andrade mine operates a crushing and screening facility, as well as a concentration plant used to improve the quality of the sinter feed to the Monlevade plant. This concentration plant commenced production in early 2020 and concentrates the itabirite ores, enabling mixing with the higher-grade hematite ores. The concentrated iron ore

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| Management report |

product is transported to the Monlevade steel plant through a private railway line. In 2022, the resource model of Andrade has been updated, resulting in a new pit optimization and mine schedule, with updated Life of Mine schedule for the Itabirite and Hematite ores. The new life of mine extends to 2054, with increased annual ROM capacity up to 4.5 million tonnes after 2027. Serra Azul Mine ArcelorMittal Mineração Serra Azul mine is a production stage open pit iron ore mine located approximately 70 kilometers southwest of Belo Horizonte in the Minas Gerais State of Brazil. The mine is 100% owned and operated by ArcelorMittal Brasil. ArcelorMittal Brasil controls all of the mineral and surface rights needed to mine and process its iron ore reserves. ArcelorMittal Brasil holds mineral rights over the Central and East claims of the Serra Azul deposit of over 375 hectares and surface rights over 288 hectares. Mining legislation in Brazil does not predetermine the duration of mineral rights and as such these rights are considered valid to the point of mine exhaustion. The Serra Azul mine is located in the western part of the Iron Quadrangle, in the iron rich Cauê Formation of the Itabira Group. The mineralization occurs as friable, semi compact and compact itabirites and banded hematite-silica rocks, with varying degrees of weathering and oxidation. Currently, Serra Azul mines and processes the friable itabirite with the Serra Azul expansion project (see "—Capital expenditures") contemplating the mining and processing of semi-compact and compact ores. The Serra Azul mine also operates a processing plant consisting of a crushing facility and a three-line concentration facility, including screening, magnetic