Sentences with phrase «copper production»

Average copper production grades have fallen dramatically over the past decade.

In the short term, labour problems and technical delays will continue to slow global copper production.

Antofagasta reported a 13 percent rise in copper production compared to a year ago, slightly below expectations.

However, to highlight the challenges in bringing new copper production on quickly, consider the project's timeline: Constancia has been almost 20 years in the making.

LONDON — Chilean - focused Antofagasta said first quarter copper production fell by 10.5 % to 153 800 t compared with the same quarter a year ago, mainly because of lower quality ore, but kept full - year output guidance unchanged.

• Mined copper production was five per cent higher than the second quarter of 2011, primarily driven by processing efficiencies and higher copper grades at Escondida.

The Anglo - Swiss commodity trading and mining company said its own - sourced copper production rose to 345,400 tons, from 342,100 tons in the first quarter of 2017, reflecting the commissioning of the first phase of the whole - ore leach project at the Katanga mine in Congo.

In the most eye - catching series, he skimmed information from uncredited images in the Economist, such as that of copper production factory floor in «Untitled» (2014), and reprocessed it digitally and photographically, preserving and enlarging the raster pattern of the half - tone «original,» incidentally activating visual references to Sigmar Polke (1941 - 2010) and Roy Lichtenstein (1923 - 1997).

The company's copper production guidance has been narrowed from 1.695 million tonnes to 1.79 million tonnes to 1.7 million tonnes to 1.785 million tonnes.

Alcoa (NYSE: AA) While Freeport - McMoRan is a diversified resources company, it is the second largest copper producer in the world, and therefore the bulk of its income is still derived from copper production.

Q1 copper production was lower owing to planned maintenance shutdown; post shut down, plant is ramping up smoothly.

Full - year copper production output is expected to reach between 385 - million and 450 - million pounds, at an AISC of $ 2.30 / lb to $ 2.60 / lb.

Based on an early assessment of information currently available, it is estimated that 2013 refined copper production at Kennecott Utah Copper will be approximately 100,000 tonnes less than previously anticipated.

In 1934, American archaeologist Nelson Glueck named one of the largest known copper production sites of the Levant «Slaves» Hill.»

Copper production fell to 153,800 tonnes from 171,900 tonnes, due mostly to lower grades at the company's Centinela and Los Pelambres mines.

Rio lifted shipments of iron ore from its flagship Pilbara operations by 5 per cent in the March quarter, while bauxite and copper production also jumped.

• Mined copper production was 18 per cent lower than the first quarter of 2011 due to anticipated lower grades at Kennecott Utah Copper.

Earlier, Freeport reduced its copper production forecast for this year to 3.8 billion pounds from 3.9 billion and raised its copper cash cost forecast to $ 1.01 a pound from a previous 97 cents.

The London - based company, 64 per cent owned by Toronto - headquartered Barrick Gold Corp., says it took a writedown of US$ 644 million for 2017 because of export restrictions on some of its gold and copper production, resulting in a net loss of US$ 707 million.

That's both a benefit and a problem, with the concern being that 45 % of the world's copper production is currently consumed by China, which is seeing its economy slow down.

We are also pleased with higher than planned quarterly zinc and copper production, which means the Company is on track to meet annual production guidance.

At Bingham Canyon, last week's pit wall slide will have a significant impact on our copper production this year.

Copper production is a complex operation requiring many levels of expertise.

It is vital to regional copper mining, which constitutes ~ 50 % of Chile's copper production, which in turn supplies one - third of the world's copper needs.

In fact, Arizona provides about two thirds of the nation's copper production.