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Asarco

ADEQ: Patagonia mine wasn't source of orange sludge

ADEQ: Patagonia mine wasn't source of orange sludge

Agency draws flak from environmentalists for its handling of Trench Mine runoff.

October 21, 2014 10:00 pmLoading…
Major local employers already offer same-sex benefits

Major local employers already offer same-sex benefits

Tucson has been issuing domestic partnership certificates since 2003.

October 17, 2014 10:30 amLoading…
Closed Patagonia mines send orange sludge into creeks

Closed Patagonia mines send orange sludge into creeks

Toxic heavy metals may have leached into the water during heavy rains.

October 15, 2014 8:00 pm Photos

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Hayden, Miami smelters slated for upgrades

Hayden, Miami smelters slated for upgrades

Federal regulations will cut sulfur dioxide emissions 85 percent at the smelters.

October 11, 2014 7:00 pm Photos

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What's going up? Shops, places of worship, more

What's going up? Shops, places of worship, more

Satisfying readers' curiosity about what's under construction around Tucson.

August 17, 2014 12:00 amLoading…
Asarco parent to acquire last Silver Bell stake

Asarco parent to acquire last Silver Bell stake

The Silver Bell mine is west of Marana.

July 28, 2014 12:00 amLoading…
Asarco parent to acquire partner's stake in Silver Bell mine

Asarco parent to acquire partner's stake in Silver Bell mine

Grupo Mexico, parent of Tucson-based copper producer Asarco LLC, is expected to complete a deal to take full control the Silver Bell mine west of Marana by acquiring an additional 25 percent ownership stake from a business partner.

July 25, 2014 11:43 amLoading…
Business briefs

Business briefs

Phoenix car wash mogul pleads guilty; Asarco to pay Arizona fine; more.

July 25, 2014 12:00 am Photos

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Ringleader gets 2½ years in multimillion-dollar copper-theft plot

A man who prosecutors said was the ringleader of a multimillion-dollar copper-theft scheme was sentenced Wednesday to prison.

May 29, 2014 12:00 am

Neto's Tucson: San Manuel family's success is important tale of immigration

When Margarita and Rene Acosta arrived in San Manuel, the mining town north of Tucson in 1977, they did so with the hope of finding steady employment and, more importantly, getting an education for their three children.

May 25, 2014 12:00 amLoading…
Mine Tales: Operations at Silver Bell likely to continue for years

Mine Tales: Operations at Silver Bell likely to continue for years

Depressed copper prices in the 1920s and ’30s saw the eventual closure of mining operations in the Silver Bell district. The nearby Sasco smelter had shut down by 1921 and the Sasco townsite was abandoned.

April 07, 2014 12:00 am Photos

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Ring's Reflections: Copper remains a huge economic factor in Arizona

Ring's Reflections: Copper remains a huge economic factor in Arizona

It seems like mining has always been big in Arizona. In 1736 the discovery of silver just below the current border with Mexico drew prospective Spanish miners northward into Southern Arizona. After Arizona became a U.S. territory, gold was found near Yuma in 1858 and in 1863 in the Bradshaw …

April 03, 2014 12:00 amLoading…
Mine Tales: Silver Bell district yielded millions of pounds of copper

Mine Tales: Silver Bell district yielded millions of pounds of copper

The earliest recorded mine in the Silver Bell Mountains was the Old Boot Mine in 1865. The mine, later renamed the Mammoth Mine, was developed by prospectors and financed by a group of Tucson merchants including Zeckendorf and Steinfeld, who were drawn to the heavy, black garnet-stained rock…

March 31, 2014 12:00 am Photos

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Asarco dedicates expanded mill at Mission Mine

Asarco dedicates expanded mill at Mission Mine

Tucson-based Asarco held a formal dedication ceremony this week — led by President and COO Manuel Ramos — of the expansion of the south mill at the Mission Mine south of town.

December 06, 2013 12:00 amLoading…

Asarco to pay $70,000 for Sahuarita dust violations

The mining giant Asarco will pay Pima County its second round of civil penalties and environmental reparations in three years over tailings dust blowing from its Mission Mine in Sahuarita into neighboring homes.

October 06, 2013 12:00 amLoading…
Top Three Picks for Tucson Mod Week

Top Three Picks for Tucson Mod Week

Tucson Modernism Week returns Friday with an entirely new schedule from last year but the same goals in mind.

October 03, 2013 12:00 amLoading…

Asarco, unions agree to continue talking

Officials with Asarco LLC say the copper mining company and unions representing employees at sites in Arizona and Texas have agreed to continue negotiating a labor contract.

June 30, 2013 12:00 amLoading…

Tucson-based Asarco fined $800K for delaying mine audit

Federal authorities have fined Tucson-based copper-mining giant Asarco more than $800,000 for failing to permit an audit of the company’s production from its Mission mine near Sahuarita.

June 21, 2013 12:16 pmLoading…
Horne: 18 in copper theft ring indicted

Horne: 18 in copper theft ring indicted

State Assistant Attorney General Mike Jette discusses the copper thefts. Mine workers are accused of selling the copper to recyclers at a fraction of the price. The recyclers would then resell it to Chinese importers, investigators say.

May 01, 2013 12:00 amLoading…
Horne: 18 in copper theft ring indicted

Horne: 18 in copper theft ring indicted

Eighteen people are facing charges in a multimillion-dollar copper theft ring involving Asarco employees, state law-enforcement officials said Tuesday.

May 01, 2013 12:00 am

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