Southern Copper Corp.

Buenavista del Cobre (Cananea), Sonora, Mexico - one of the world's largest porphyry copper deposits and the oldest continuously operated copper mine in North America (since 1899); acquired by Minera Mexico in 1990. Conventional open-pit operation with two concentrators (original 86,000 t/d nominal; second concentrator from 2016 at 120,000 t/d), three SX-EW plants (third plant rated 120,000 t/yr Cu), two molybdenum plants (combined 4,600 t/yr) and the Quebalix IV crushing-conveying-spreading system, supporting 500,000 t/yr copper capacity. A new zinc concentrator ramped up from Q1-2024, adding zinc recovery (separate 'Buenavista zinc plant' reserve/resource lines). 2025 capex included $252.0M for the new tailings disposal deposit and $67.1M for the new concentrator. S-K 1300 TRS Exhibit 96.6.

Open-pit copper-molybdenum porphyry complex at Nacozari, Sonora, Mexico; complex began operations in 1998 and reached full annual operating capacity of 150,000 tonnes of copper in 1999. Integrated complex includes concentrator, SX-EW facility (21,900 t/yr cathodes, built 1995, fed by ~1,037.4 Mt of leaching ore at ~0.238% Cu deposited in dumps as of Dec 31, 2025), smelter, refinery, rod plant and precious metals plant. Mill cut-off grade 0.30% Cu; ore between 0.15-0.30% Cu delivered to leach dumps. The Pilares satellite deposit (separate project row) trucks ore to the La Caridad mill. S-K 1300 TRS for La Caridad and Pilares, Exhibit 96.7.

Open-pit copper-molybdenum porphyry mining unit in Tacna, southern Peru, operated by the SPCC Peru Branch and in operation since 1960. Two concentrators each with 60,000 t/d milling capacity plus SX-EW cathode production from leach dumps. Porphyry copper mineralization related to feldspathic porphyry intrusions controlled by regional faulting. Concentrates railed to the Ilo smelter; access via developed roads with air service at Tacna. 2025 capex included relocation of the leaching crusher ($37.1M) and modernization of the slab stripping machine ($12.2M). One of SCC's S-K 1300 material properties (TRS Exhibit 96.2).

Open-pit copper-molybdenum porphyry mining unit in Moquegua, southern Peru, operated by the SPCC Peru Branch; conventional drill/blast/haul open-pit operation feeding a 90,000 t/d concentrator, currently operating at full capacity. A spur railway connects Toquepala and Cuajone operations and carries concentrate to the Ilo smelter. Recent investments include HPGR optimization ($54.2M in 2023, $18.2M in 2024) and a new concentrator maintenance workshop. One of SCC's S-K 1300 material properties (TRS Exhibit 96.1).

Underground polymetallic mining complex in San Luis Potosi state, central Mexico, part of SCC's IMMSA unit; produces zinc, copper, lead and silver. One of the three currently operating IMMSA underground complexes. S-K 1300 TRS (resources only) Exhibit 96.10.

Underground polymetallic mining complex in Zacatecas state, central Mexico, part of SCC's IMMSA unit; produces zinc, copper, lead and silver. Restored to operation following the 2018 restart (mine restoration capex through 2024). S-K 1300 TRS (resources only) Exhibit 96.12.

Underground polymetallic mining complex in Chihuahua state, northern Mexico, part of SCC's IMMSA unit; produces zinc, lead, copper, silver and gold. One of the three currently operating IMMSA underground complexes. S-K 1300 TRS (resources only) Exhibit 96.11.

Segment rollup of SCC's Mexican open-pit operations held through Minera Mexico: the Buenavista (Cananea, Sonora) and La Caridad (Nacozari, Sonora) mining complexes, including the La Caridad smelter, refinery and rod plant and the Buenavista SX-EW and zinc concentrator facilities, plus the Pilares satellite deposit and the El Arco and El Pilar development projects. 2025 segment net sales $7,623.0 million.

Segment rollup of SCC's Peruvian operations conducted through the SPCC Peru Branch: the Toquepala and Cuajone open-pit mining units, the Ilo smelter (ISASMELT, nominal capacity 1,376,050 t of copper concentrate per year) and refinery, and the development pipeline (Tia Maria under construction, Los Chancas, Michiquillay). Concentrates from Toquepala and Cuajone move by company railroad to Ilo. 2025 segment net sales $5,247.6 million.

World-class porphyry copper deposit in the central Baja California peninsula, Mexico, with sulfide ore reserves of over 1,230 Mt at 0.40% Cu and 141 Mt of leach material at 0.27% Cu, plus gold and silver credits. Project includes an open-pit mine with a combined 120 ktpd concentrator and 28 ktpy SX-EW operation. Detailed engineering underway for the concentrator, SX-EW plant, water desalination, logistics infrastructure and power delivery. Reserves priced at $9.00/lb Mo (vs $10.00 elsewhere) and resources at $10.35/lb Mo. S-K 1300 TRS Exhibit 96.9.

Low-capital-intensity copper oxide greenfield project in Sonora, Mexico, ~45 km from the Buenavista mine. Copper oxide mineralization hosted in alluvial wash gravels at the southwest margin of the Patagonia Mountains; estimated P&P reserves of 317 Mt at 0.249% Cu. Anticipated to operate as a conventional open-pit mine with SX-EW technology and annual capacity of 36,000 tonnes of copper cathodes. S-K 1300 TRS Exhibit 96.8.

Greenfield copper-molybdenum porphyry project in Apurimac, Peru. Envisions an open-pit mine with combined concentrator and SX-EW operations producing 130,000 t/yr copper and 7,500 t/yr molybdenum; estimated capital $2,600M with operations expected from 2031. As of Dec 31, 2025 the presence of illegal miners within the project area has prevented advancement; the company continues actions with authorities to regain control while implementing environmental and social programs in Tapayrihua and Tiaparo communities. S-K 1300 TRS (resources only) Exhibit 96.4.

Suspended underground polymetallic mining complex in Chihuahua, Mexico, one of the five IMMSA underground complexes (three of five currently operating). No production recorded in the company's 2010-2025 per-mine production series.