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Integrated management experience of AngloGold Ashanti, Brazil

Paper from the Proceedings of Mine Closure Solutions 2014 conference held in Ouro Preto, Brazil, April 26-30, 2014. (downloadable PDF).

Authors: Irany Braga and Fadwa Andrade, AngloGold Ashanti, Brazil

Published by InfoMine Inc. 2014.
ISBN: 978-0-9917905-4-8

Abstract

AngloGold Ashanti, one of the world’s leading gold mining companies, is headquartered in Johannesburg, South Africa; it operates on four continents, with 23 operations in 11 countries. The company was set up in Brazil in March, 1999, after acquiring Mineração Morro Velho, formerly Saint John d’el Rey Mining Company, which was established in 1834. It currently operates three business units in the country: Córrego do Sítio, in Santa Bárbara, Minas Gerais; Cuiabá-Lamego, in Sabará, Minas Gerais (see Figure 1); and Serra Grande, in Crixás, Goiás. Its administrative facilities are in Nova Lima, Minas Gerais.

Each mine has its own lifespan: it begins with mineral exploration, followed by operation, and ends in mine closure. AngloGold Ashanti believes that mine closure guidelines must be established from the time the project is implemented, even if the service life of the mine extends for decades. In 2009, the South African headquarters published its corporate standards for mine closure and rehabilitation of industrial areas. Using this standard as a guideline, all other AngloGold Ashanti operations around the world have developed technical closure plans that anticipate the need to identify environmental, social, and economic impacts and planning actions that will leave a positive sustainable legacy for future generations. The company’s closure plans for operations in Brazil are aligned with this guidelines and with Brazilian environmental laws. The first AngloGold Ashanti mine closures in Brazil took place in Nova Lima and Raposos in 1995 with the Mina Grande mine and other smaller mines. We learned a lot through this process, and realized that there was much more we could have done to achieve the best possible mine closure procedures. In 1998, the metallurgical plant in Nova Lima was decommissioned following all of the standards outlined by the environmental permitting authority. In 2003, the Mina Velha mine in Nova Lima was closed in compliance with the best environmental practices, which ensured and bolstered the effectiveness of our environmental management. Various rehabilitation processes involving deactivated storage facilities and mines are now in progress in Nova Lima and Raposos.

This presentation will show how our processes have developed over time, taking into account all of the environmental and social management that has been applied in our operations in recent years.


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