Amrize has received a notice of an unsolicited 'mini-tender' offer by TRC Capital Investment Corporation to purchase up to 2 000 000 ordinary shares, US$0.01 par value per share (the 'Ordinary Shares') of Amrize at a price of US$49.63 per Ordinary Share in cash. TRC’s offer price is 4.48% less than the US$51.96 closing price per Ordinary Share on August 26, 2025, the last trading day before the mini-tender offer commenced. Amrize does not endorse TRC’s unsolicited mini-tender offer and recommends that Amrize shareholders do not tender their Ordinary Shares in the offer because the offer is at a price below the current market price for the Ordinary Shares. As a result, unless TRC decides to waive this condition, Amrize shareholders who tender their Ordinary Shares in the offer would receive a below-market price for Amrize’s Ordinary Shares through the tender offer. Amrize recommends that shareholders who have not responded to TRC’s offer take no action.