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Escondida, the world's largest copper mine, saw no production in March compared to 91,900t in the same month last year. Production in Q1 was down 63.4% to 97,100t.
State copper giant Codelco posted an 11.4% year-on-year drop in output to 416,300t in January-March. Production at its Chuquicamata-Radomiro Tomic-Ministro Hales complex fell 10.8% to 189,800t, while output at its smallest mine, Salvador, was down 10% to 13,500t and El Teniente's dropped 20.6% to 101,500t.
Collahuasi (pictured), a JV between Anglo American and Glencore and Chile's second largest copper mine, reported a 12.8% increase to 131,000t in Q1, while production at Antofagasta Minerals' Los Pelambres rose 0.9% to 85,900t. Output at Lundin Mining's Candelaria was down 7.3% to 31,600t.
El Abra, controlled by Freeport McMoRan with a 51% stake and 49% owned by Codelco, saw production decline 31.7% to 19,400t. Output at BHP's Spence was up 24.1% to 49,400t but at its Cerro Colorado operation production was down 16.5% to 16,700t.
Teck Resources' Quebrada Blanca saw output fall 21.6% to 6,900t in the quarter, while production at Glencore's Lomas Bayas mine rose 10.3% to 20,300t. Production at Mantos Copper's joint Mantoverde and Mantos Blancos mines was down 22.8% to 20,000t.
Chilean molybdenum production rose 7.16% year-on-year to 5,011t in March, Cochilco said in a separate report. Output for the first three months was down 5.1% to 13,949t.
Codelco's molybdenum output fell 6.6% to 6,711t in January-March, mainly because of a 25.5% decline at its El Teniente mine, which offset 12.8% growth at Salvador.
Los Pelambres produced 2,172t, up 28.5% from January-March 2016. Collahuasi's molybdenum output fell 76.2% to 182t, while Anglo American Sur reported a 38.9% drop to 468t.
GOLD, SILVER DOWN
Chilean gold production fell 24.6% year-on-year to 2,709kg (87,106oz) in March, while silver output was 33.7% lower at 88,945kg, the state agency said separately.
Gold output for the first three months was down 22.2% to 8,298kg, while silver production fell 26.2% to 283,385kg.