Primary Sector
El Teniente mine , the underground mine of copper world's largest.
In the field of agriculture is the center where they meet most of the agricultural products of the region before being exported via ports of San Antonio or Valparaiso .
In Cachapoal Valley , large climatic contrasts between the slopes of the Andes and the plans of the central valley warmer favor the production of wines generous reds. The vines occupy about 80% of plantings. Most hectares corresponds to Cabernet Sauvignon , followed by Merlot and Carmenere . In whites, Sauvignon Blanc and Chardonnay .
At 50 minutes from the city and the Andes lies the copper mine El Teniente , currently operated by Codelco Chile . This site was established as an important source of employment for people in the conurbation of Rancagua . The Braden Copper Company , which owns the former reservoir, was instrumental in the development of the city until the 1960s , both in material aspects as cultural.
Secondary sector and tertiary
Independence Pass, a major commercial hubs of Rancagua.
Rancagua has developed since the late twentieth century a varied activity of trade . The highest points are the core business] formed by the Paseo Independencia and Calle Brasil , and in recent years the Highway Eduardo Frei Montalva , also called Copper Road to get to the copper deposits of the mine El Teniente . This important road of the city has developed an incredible trade boom since the end of the 90s , where they have built a number of shopping malls ,hypermarkets , retail, services and medical institutions , which has greatly increased the surplus sector east of the city.
This city does not stand out much for being a city industry , except in the food. There are some industrial parks that line the old Panamerican Highway , and in the north of the city, but they are not as important nationally
