It’s not true that The Plant "Minera Escondida" in Chile produced 1,483 million tonnes of copper in 2007. The plant produced 124000 tons of copper

 From the series of publications 
"So they create a fairy tales for the investor" - 
"They draw up the necessary documents
and begin to search for the simpleton..."

 Plant "Minera Escondida" (Chile)

Owners:
57.5 % BHP Billiton (Australia)
30 % Rio Tinto (UK)
10 % JECO Corp. (Japon)
2.5 % International Finance Corp. (USA)

"Mr Diego Hernandez president of Billiton Base Metals told Reuters during a televised (07 Apr 2008) that... Escondida produced 1,483 million tonnes of the red metal last year..."

It’s not true that The Plant "Minera Escondida" in Chile  produced 1,483 million tonnes of copper in 2007.  

The  Plant "Minera Escondida" in Chile produced 124000 tons of copper in 2007.  

IMHO: The remaining 1,359 million tons are stones, sand, minerals containing copper, but they are not metallic copper. They call it "copper concentrate", "fine copper contained in concentrate", "cobre fino contenido en concentrado"...

They wrote on the BHP website that "Escondida mine is the world's largest copper producer".

The Plant "Minera Escondida" in Chile produces 120-350 kt of copper cathode.The remaining million tons are stones, sand, minerals, but not copper. 

IMHO: This is not enough to become "the world's largest copper producer".

The Plant "Minera Escondida" does not produce either gold or silver, but copper concentrate and copper cathode. Copper concentrate from The Plant "Minera Escondida (Chile) is an intermediate product that is cheap and requires further processing and significant financial costs. The concentrate is stones, sand, minerals, but not metals.

 Ph.D. Natalia Petrovskaya 

  References

1.  https://www.bhp.com/media-and-insights/image-gallery/locations-and-operations/escondida-chile/
2.  https://steelguru.com/steel/bhpb-escondida-copper-mine-exploring-to-extend-life/41457
3.  https://www.mining-technology.com/projects/escondida/
4.  https://www.feller-rate.com/general2/corporaciones/escondida0711.pdf
5.  https://investingnews.com/daily/resource-investing/base-metals-investing/copper-investing/3-largest-copper-mines-in-the-world/
6. https://web.archive.org/web/20090209051913/http://www.escondida.cl/mel/en/news/2008/21_05_Febrero2008.asp
7. https://consejominero.cl/quienes-somos/socios/bhp/
8. https://www.bhp.com/media-and-insights/news-releases/2016/04/con-inauguracion-de-tercera-planta-concentradora-escondida-celebro-25-anos-de-operaciones/
9. https://earthshots.usgs.gov/earthshots/node/58#ad-image-1-0
10. https://www.usgs.gov/centers/nmic/international-minerals-statistics-and-information#ci
11.  https://miningdataonline.com/property/147/Escondida-Mine.aspx
12.  http://www.guiaminera.cl/minera-escondida-ltda/
13.   https://es.statista.com/estadisticas/600189/principales-minas-de-cobre-a-nivel-mundial/
14.  https://en.wikipedia.org/wiki/Escondida
15. https://en.wikipedia.org/wiki/Minera_Escondida
16.  https://steelguru.com/steel/bhpb-escondida-copper-mine-exploring-to-extend-life/41457
17.  https://www.mining.com/featured-article/ranked-worlds-top-copper-mines/
18.  https://www.sernageomin.cl/wp-content/uploads/2019/06/Libro_Anuario_2018_.pdf
19.  http://accionempresas.cl/docs/empresas