(For full coverage, click on [ID:nCHILE])
* Teniente, biggest mine halted, restarts extraction
* Export routes said in good condition from 400ktpy mine
* Codelco's smaller Andina could also resume operations
* Awaiting word on Los Bronces; copper prices set to rise
(Updates with Teniente resumption, details)
SANTIAGO, Feb 28 Chile's biggest copper mines
hit by a massive quake slowly resumed operations on Sunday
despite limited power supplies, which analysts fear could
curtail exports from the world's No. 1 producer.
Ricardo Alvarez, manager at Chile's fourth largest mine El
Teniente, which accounts for more than 7 percent of national
output, told Reuters the recovery pace of output would depend
on the supply of electricity that was currently partial.
"As they (regional grid) allow us to use more power we will
resume other operations," said Alvarez, who added those
operations included the concentrator and Caletones smelter.
The quake killed more than 700 people and had forced
Codelco to shut the El Teniente complex as well as its Andina
copper mine, while Anglo-American (AAL.L) shut its Los Bronces
and El Soldado mines, outages that halted around one-fifth of
Chile's total production.
He added that the mine could slow the extraction of
minerals if power supply lags.
Alvarez said earlier facilities were undamaged in the 8.8
magnitude quake on Saturday and that roads to the exporting
port of San Antonio were in good condition.
The century-old 400,000 tonne per year El Teniente is the
world's biggest underground copper mine.
Another Codelco official said earlier the nearby 210,000
tonne Andina mine was likely to resume operations by day's
There was no information available on Sunday on the
Anglo-American mines, which together produce some 280,000
tonnes a year. For more details see: [ID:nN27183634]
The biggest mines in Chile, which produces a third of the
world's copper, are about 1,000 km (600 miles) to the north and
were spared any damage, but analysts feared that supply
disruptions from the mid-sized deposits nearer the capital
Santiago would be enough to stoke prices on Monday.
For a graphic showing the location of the earthquake, click
"While it appears that a modest proportion of production
has been halted, the major impact may come from the disruption
on deliveries from the mines and from the disruption of power
supplies to the mines," said Citi analyst David Thurtell.
A Codelco spokeswoman downplayed infrastructure impact,
saying most of the road destruction was south of both mines and
that she drove on Saturday from a beach near the San Antonio
port to near El Teniente.
An Anglo American spokesman in Chile said on Saturday that
blocked roads leading to Los Bronces mine could be cleared
rapidly. He added that the mine and El Soldado had no initial
reports of major damages.
Both of Chile's main oil refineries were shut after
sustaining damage in the quake, state oil company ENAP said on
Saturday, adding that it would import diesel to meet demand.
Prolonged power outages could significantly increase demand for
liquid fuel to help keep the mines operating.
The central copper-exporting port of San Antonio had been
shut down on Saturday, but the major northern ports of
Antofagasta and Mejillones were unaffected.
Freeport McMoRan Copper & Gold Inc (FCX.N) said on Saturday
that the quake did not damage its two mines, but it is facing a
power outage at its Candelaria mine, which will result in a
temporary shutdown. [ID:nWEN0976]
(Reporting by Alonso Soto; editing by Anthony Boadle)