Taca Taca

• The company will continue working on submitting its application to the RIGI before the deadline (recently extended to July 2027). • In terms of energy, the construction of a new 345 kV transmission line is planned, extending over more than 120 kilometers, which will connect the project to the Argentine Interconnection System (SADI). • For mineral transport, the project will leverage an existing railway line located just 5 kilometers from the deposit. Plans include the construction of a new railway branch and the reactivation of the C-14 line to transport concentrate to the ports of Mejillones, Chile. • Vendaval is a recent copper and gold discovery located near the Socompa Pass. Economically viable mineralization was identified by First Quantum in 2019 after intensified geological and geophysical studies. • Since then, more than 45,000 meters have been drilled, defining a main body (Vendaval Central) and a satellite body (Vendaval Norte). Its strategic location, close to the same railway corridor that serves Taca Taca, facilitates potential future integration.

Initial processing capacity of 40 million MT per annum with an expansion to 60 MT commencing in the fifth year of operation. The Project will follow First Quantum’s tried and tested design of large-scale SAG mill processing trains with expansion potential that will leverage on the Company’s experience from other operated mines.

Mineral reserves of 1,990 MT at a copper grade of 0.42% and gold grade of 0.09 g/t

291,000 tonnes of copper, 133,000 oz gold & 3,500 tonnes of molybdenum

Porphry