| 1899 |
|
Asarco
organized as American Smelting and Refining Company. Included in original
consolidation were mines and mining claims in Colorado and Mexico. Major plants in
consolidation included: Globe by-products plant (Denver, Colorado), East Helena lead
smelter (Montana), El Paso lead plant (Texas). |
| 1901 |
|
Merged
with M. Guggenheim's Sons. Included in the merger were the Perth Amboy copper
refinery (New Jersey) and smelters in Mexico (Chihuahua lead smelter, San Luis Potosi lead
and copper smelter, Monterrey lead and copper smelter). Acquired five additional mines in
Mexico. |
| 1910 |
|
Purchased
mining properties in Silver Bell district of Arizona. Copper smelters built in El Paso,
Texas, and Hayden, Arizona. |
| 1922 |
|
Amarillo,
Texas, zinc plant constructed. |
| 1942 |
|
Corpus
Christi, Texas, zinc plant constructed. |
| 1954 |
|
Production
commenced at Silver Bell, Asarco's first open-pit copper mine. |
| 1960 |
|
Southern
Peru Copper Corporation opened the Toquepala mine and Ilo smelter. |
| 1961 |
|
Mission
copper mine in Arizona started up. |
| 1967 |
|
Mexican
mines and plants reorganized as Asarco Mexicana, S.A., and 51% interest sold to Mexican
investors. |
| 1971 |
|
Four
Tennessee zinc mines purchased. |
| 1973 |
|
San
Xavier copper mine and leach plant in Arizona started production. |
| 1974 |
|
Asarco
Mexicana, S.A. reorganized as Industrial Minera Mexico, S.A. and 15% interest sold to
Mexican investors reducing equity to 34%. |
| 1975 |
|
Corporate
name changed to ASARCO Incorporated. |
|
|
Amarillo
zinc refinery closed. |
|
|
Amarillo
copper refinery commenced production. |
| 1976 |
|
Southern
Peru Copper Corporation opened Cuajone copper mine. |
| 1978 |
|
Industrial
Minera Mexico, S.A. (IMM) reorganized. Asarco owns 34% of Mexico Desarrollo Industrial
Minero, S.A., a holding company formed to hold shares of IMM and shares of certain IMM
operating subsidiaries. |
| 1979 |
|
Modernization
of El Paso Plant completed. |
|
|
Eisenhower
Mining Company, a partnership of Anamax and Asarco, began mining the Palo Verde copper
deposit located between Asarco's Mission and San Xavier copper mines. |
| 1983 |
|
Hayden
copper smelter modernization completed. |
| 1985 |
|
Corpus
Christi zinc smelter and refinery operations suspended indefinitely. |
|
|
Pima
copper mine in Arizona acquired. |
| 1986 |
|
Ray
copper mine and smelter purchased. |
| 1987 |
|
Anamax
interest in Eisenhower mineral reserves acquired. |
| 1988 |
|
Encycle,
Inc. started up waste treatment facility at Corpus Christi. |
| 1989 |
|
IMASA
Group acquired. |
|
|
49.9%
interest acquired in copper mining business of Montana Resources, Inc. |
|
|
Asarco
announces decision to end involvement in coal mining. |
|
|
Asarco
announces board approval to expand copper facilities at Mission and Ray mines and El Paso
smelter. |
| 1991 |
|
Expansion
of Mission mine completed. |
| 1992 |
|
Expansion
of Ray mine completed. |
|
|
Asarco
becomes a fully integrated copper producer. |
| 1993 |
|
Modernization
of El Paso smelter completed. |
| 1994 |
|
Acquisition
by Southern Peru Copper Corporation of Ilo Refinery. |
|
|
Underground
operation at Mission mine announced. |
|
|
Asarco
and Coeur d'Alene Corp. form Silver Valley Resources, Inc. |
| 1995 |
|
Asarco
purchases an additional 10.7% interest in SPCC, increasing holdings to 63%; consolidates
results. |
|
|
SPCC
starts SX/EW facility at Toquepala. |
|
|
New
sulfuric acid plant started at SPCCs Ilo smelter. |
| 1996 |
|
Asarco
announces construction of a new mining and SX/EW facility at Silver Bell mine. |
| 1997 |
|
Silver
Bell solvent extraction/electrowinning facility started. |
|
|
Asarco
sells shares in Grupo Mexico, S.A. de C.V. for $323 million. |
|
|
Expansion
program started at SPCC's Cuajone mine; to increase mine's production 50%. |
| 1999 |
|
Asarco
suspends operations at El Paso, Texas copper smelter |
|
|
Asarco
exchanges interest in Coeur and Galena mines for interest in Coeur d'Alene Mines Corp. |
|
|
Grupo
Mexico purchases shares of Asarco for $2.2 billion (including debt); retains Asarco as
wholly-owned U.S. operating subsidiary. |
| 2000 |
|
Year Under Review |
| 2001 |
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| 2002 |
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| 2003 |
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| 2004 |
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| 2005 |
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| 2006 |
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| 2007 |
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| 2008 |
|
Year Under Review |