The country’s environmental management authority found the copper concentrate imported from Chile had high levels of arsenic, a toxic substance.
Vedanta Mining News
Konkola Copper Mines, owned by Vedanta, said the move was a result of poor metal prices, which has hit the global copper industry very hard.
India's private iron ore producers are likley to suffer the effects of high costs, low prices and a poor export market.
Power restrictions could hit output of most copper mines operating in the country.
The Chamber of Mines wants the government to reconsider its decision to hike corporate income tax rate on mineral processing from 30% to 35%, which came in effect July 1.
The move puts an end to a nearly nine-month standoff that has hit output and profits in Africa’s second largest copper producer.
The country's national pension fund has bought 15.9 million shares of Zambia's Consolidated Copper Mines-Investment Holdings for almost $80 million.
Mines minister Christopher Yaluma said reducing royalties below the recently revised 9% would make underground mining more cost effective.
The announced changes will be effective on July 1, once parliament has approved them.
Government claims it was not notified according to the law.
But the fund warned that only further tightening of fiscal and monetary polices would contain the country's large deficits.
The new rules only apply to future payments and not amounts already owed.
The situation may soon change, as authorities have began talks with the country’s top miners, signalling the possibility of a compromise over the country’s new tax regime.
The miner, Zambia's largest foreign investor, operates Kansanshi mine, the eighth largest copper mine in the world, as well as the country's biggest.
Underground mining royalties will go up from 6% to 8%; underground taxes now 20%.
Zambia’s mines minister says the company has not officially communicated the government its intentions as required under the country's law.
The company is cutting 169 jobs at the mine.
The standoff marks a major setback for the miner, which is in the process of upgrading its copper assets in Zambia hoping to increase output by at least 50% by 2017.
He has been working with Vedanta since September as chairman of Vedanta Resources Holding, a subsidiary of the Indian resources group.
The news comes only nine months after Albanese was removed as CEO of the second-biggest miner and left the group with a $14billion charge.
Indian company pulls out of Rio Tinto iron-ore bid.
Measure is expected to reduce tensions with the Zambian government, which threatened to take over the mine in May.
Vedanta, Rio Tinto, Anglo American and Kazakhmys all enter top ten risers after People's Bank of China tries to encourage spending.
Two sources with knowledge of the matter say second-round bids are due later this month, with preliminary interest seen from Anglo American, OZ Minerals, Vedanta Group and Aditya Birla Group.
London-listed diversified miner Vedanta Resources (LON:VED) announced today a significant drop in its full-year iron ore output, attributed to both a mining ban in India’s southern state of Karnataka and logistical bottlenecks in nearby Goa, which hurt one of its key profit generators.