Company: MT
Filing Date: 2025-03-10
Form Type: 20-F
Source: 0001243429-25-000017
Chunk: 158

Company: ArcelorMittal
Filing Date: 2025-03-10
Form: 20-F
Chunk 158
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 by qualified persons, in accordance with the guidelines for mining property disclosure requirements in accordance with S-K 1300. Qualified persons are either employees of ArcelorMittal, or they are third parties or employees of a third party who are not affiliates of ArcelorMittal and neither such third parties or their employers has an ownership, royalty or other interest in the property for which they have estimated mineral reserves or mineral resources. No qualified persons have been employed on a contingent basis. For additional information about the qualified persons identified below, please see the exhibits to this annual report. Only measured and indicated mineral resources, where the level of geological certainty associated was sufficient to allow a qualified person to apply modifying factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit, were converted to proven or probable mineral reserves for each of the mineral properties under the summary disclosure. The 2024 mineral resource and mineral reserve estimates at the AMMC mining property have been prepared by qualified persons who are employees of ArcelorMittal. The 2024 mineral resource and reserve estimates for the Las Truchas mine (consolidated as Mexico, excluding Peña Colorada in the tables below) were prepared by qualified persons of SLR Consulting (Canada) Ltd. Peña Colorada also contracted SLR Consulting (Canada) Ltd. to provide the 2024 mineral resource and reserve estimates for the Peña Colorada mine, with the support of the Peña Colorada team. The 2024 mineral resource and reserve estimates for the Andrade and Serra Azul mines (consolidated as Brazil in the tables below) were prepared by qualified persons of the GE21 Consultoria Mineral, with the support of the ArcelorMittal Brazil local team. The mineral resource and reserve estimates for the AMKR (Ukraine) open pit and underground operations as of December 31, 2024 were prepared by LLC "KAI" with the support of the AMKR team.

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| Management report |

For 2024, mineral resource and reserve estimates for the Thakurani and Ghoraburhani – Sagasahi mines (India in the tables below) were prepared by a qualified person of BMRC Geomining Solutions PVT LTD . AML's 2024 mineral resources and mineral reserves were estimated by qualified persons who are employees of ArcelorMittal. In 2024, a qualified person of VBKOM (Pty) Ltd updated the mineral resources estimate for the Vanderbijl pit at Thabaz