Mr. Jeremy Martin reports

HORIZONTE MINERALS PLC ANNOUNCES OPERATIONS DIRECTOR APPOINTED FOR ARAGUAIA PROJECT

Horizonte Minerals PLC has strengthened its management team with the appointment of Fernando Marino as its operations director for the Araguaia nickel project.

Jeremy Martin, chief executive officer of Horizonte, commented: "We are pleased to welcome Fernando as operations director for the Araguaia nickel project, which marks an important milestone for Horizonte as we prepare to bring Araguaia into production given that construction is now around 65 per cent complete. Fernando's extensive experience in commissioning, production ramp-up and operating Brazilian nickel operations, coupled with over 20 years of stakeholder engagement experience in the Para state, will be invaluable at Araguaia and we look forward to working with him."

Mr. Marino has over 35 years of experience in the resources industry, with a strong record of ramping up and operating mining operations in Brazil. He worked across a range of mining operations for Vale in Brazil, including as director of operations at Onca Puma, a ferronickel operation in Para state located approximately 250 kilometres from Araguaia. During his time at Onca Puma, he managed the initial ramp-up phase and subsequently implemented improvements to the original furnace design in conjunction with Hatch (Araguaia's furnace vendor). Additionally, he led a comprehensive review of the operational, maintenance and safety procedures, resulting in a record annual production of 25,000 tonnes of nickel, without any lost-time accidents. Prior to joining Horizonte, Mr. Marino was executive manager at Vale's base metals South Atlantic operations and previously managed the Salobo copper mine and plant.

About Horizonte Minerals PLC

Horizonte Minerals is developing two 100-per-cent-owned, Tier 1 projects in Para state, Brazil -- the Araguaia nickel project and the Vermelho nickel-cobalt project. Both projects are large scale, high grade and low cost; have low carbon emission intensities; and are scalable. Araguaia is under construction, with first metal scheduled for Q1 2024. When fully ramped up with Line 1 and Line 2, Araguaia is forecasted to produce 29,000 tonnes of nickel per year. Vermelho is at feasibility-study stage and is expected to supply nickel to the critical metals market. Horizonte's combined production profile of over 60,000 tonnes of nickel per year positions the company as a globally significant nickel producer. Horizonte's top three shareholders are La Mancha Investments SARL, Glencore PLC and Orion Resource Partners LLP.

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