Montage Gold reports Q1-2026 activities

Koné project construction on-budget and ahead of schedule • Continued exploration success • Robust liquidity sources KONÉ CONSTRUCTION ACTIVITIES Rapid progress achieved with +10.4 million hours worked to date, with +3,500 employees and contractors on-site Ahead of schedule with first gold pour targeted in late Q4-2026 through the oxide circuit and on budget with $636.9 million of capital committed as at today, representing approximately 72% of the total upfront capital expenditure Key process plant achievements include successful installation of all major mill components, erection of all reagent tanks, installation of agitation and gearboxes ongoing on CIL tanks, completion of the oxide sizer, and the rapid advancement of civil works on the hard-rock comminution circuit Other key infrastructure workstreams are also advancing ahead of schedule, including grid connectivity, water services, mine service areas, and the HDPE lining of the TSF which is over 90% complete EXPLORATION ACTIVITIES The 90,000-meter drill programme at the Koné project is well underway with a total of 47,254 meters drilled in Q1-2026 Resource updates for previously delineated satellite deposits, along with maiden resources estimates for new discoveries such as Petit Yao and Soman, are expected to be published in Q2-2026 The 9,000-meter drilling programme at the Wendé advanced greenfield exploration property is underway while early exploration works commenced at the greenfield exploration tenements recently secured in Mauritania FINANCIAL POSITION Robust liquidity and Koné project funding sources totalling $440.2 million compared to remaining capital disbursements of $380.1 million VANCOUVER, British Columbia, May 14, 2026 (GLOBE NEWSWIRE) -- Montage Gold Corp. (“Montage” or the “Company”) (TSX: MAU, OTCQX: MAUTF) is pleased to report on its construction and exploration activities for Q1-2026, with highlights provided in Table 1 below. Table 1: Business and financial highlights The Compan