Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Sewell Mining Town' has mentioned 'Copper' in the following places:
Occurrence Sentence Text Source
[1] It is known as a former company town, developed by Braden Copper Company for housing the workers (and their families) associated with the operations of El Teniente, the largest underground copper mine in the world.
After the government acquired a majority interest in the mine, and even more so after copper mining was nationalized in 1971, the government company moved workers into the valley.
It built the Copper Highway to provide commuting access for them to the mine and related operations.
The town was founded in 1906 by the Braden Copper Company as a company town to support extracting copper from the El Teniente mine.
During the Great Depression, the Braden Copper Company became a subsidiary of Kennecott Copper Company.
In 1967 the Kennecott Copper Corporation relinquished its sole ownership of the site when the Chilean government bought a 51% stake in the company.
The government built the Copper Highway for their commuting to the mine and related operations.
Sewell Mining Town, located more than 2,200 m above sea level, clambers up the barren slopes of central Chilexe2x80x99s Los Andes Cordillera above the worldxe2x80x99s largest underground copper mine, El Teniente.
The first copper company town in Chile (the main producer of this metal in the world), the now-uninhabited Sewell is an outstanding example of the global phenomenon of company towns in which settlements were established in remote parts of the world to extract and process natural resources xe2x80x93 in this case, high-value copper.
Sewellxe2x80x99s origins go back to 1905, when the Chilean government authorized American mining engineer William Braden to exploit the copper mine.
El Teniente and the town of Sewell were owned by American companies until 1971, when the copper industry was nationalized and became the property of the State, which, by the end of 1960, had already become the major stockholder.
Criterion (ii): Sewell town in its hostile environment is an outstanding example of the global phenomenon of company towns, established in remote parts of the world through a fusion of local labour with resources from already industrialised nations, to mine and process high value copper.
Although copper flotation (metal separation) is no longer performed in the Concentrator, mineral grinding still is.
Sewell Mining Town is owned by the El Teniente Division of the National Copper Corporation of Chile (Codelco-Chile), a State-owned corporation created by Decree Law No.
In 2006 this corporation created the Fundacixc3xb3n Sewell (Sewell Foundation), a non-profit organization devoted specifically to managing, administering, conserving and promoting Sewell Mining Townxe2x80x99s assets as a museum site for the copper mining industry, and to which it provides funding.
An important management principle for the property has been community participation: the former inhabitants of Sewellxe2x80x99s contribution to conserving and developing the property and its memory for future generations is underlined, as are historical and archaeological investigations and interpretation of the property as a testimony to Chilean copper mining as a whole.
Sustaining the Outstanding Universal Value of the property over time will require updating, approving and implementing the Management Plan for the property; maintaining a rigorous maintenance programme, given the harsh climatic conditions; in the context of adaptive re-use, restoring rather than adapting a number of the dwelling units in order to display the realities of mining life in the town and to keep sufficient evidence of the internal layout of the buildings to ensure that their original functions can be discerned; and ensuring that interventions, including those related to ongoing copper mining and processing activities, do not compromise the Outstanding Universal Value, authenticity and integrity of the property.