Mr. Jeremy Martin reports

HORIZONTE MINERALS PLC ANNOUNCES NOTICE OF INVESTOR PRESENTATION

Horizonte Minerals PLC's Jeremy Martin, chief executive officer, and Simon Retter, chief financial officer, will provide a project update to investors through the Investor Meet Company platform on Aug. 3, 2023, at 2 p.m. BST.

The presentation is open to all existing and potential shareholders. Questions can be submitted at any time during the live presentation.

Investors can sign up to Investor Meet Company for free and add to meet Horizonte Minerals through the Investor Meet Company platform.

Investors who already follow Horizonte Minerals on the Investor Meet Company platform will automatically be invited.

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 forecast 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.

We seek Safe Harbor.