Zaldívar produced 102,000 tonnes of copper in 2016.
Barrick Gold Mining News
Shares collapsed on the news to close more than 25% lower in London. Barrick, which has a 64% stake in Acacia, also fell in both Toronto and New York.
Early reports claimed that Tanzania had asked foreign workers of the gold miner to leave the country, but a spokesperson for the company denied that story.
It means that the miner, which had revenue of $1bn last year, will pay about $31 million extra in royalties a year.
The miner said it continues to seek a “constructive dialogue” with the country's government to gain assurance that its operations will not be affected by newly enacted mining law.
Zaldívar produced more than 100,000 tonnes of copper last year.
President John Magufuli has also ordered the mining ministry to freeze the renewal of expired permits.
The two new laws allow the government to force mining and energy companies to renegotiate their contracts.
While the measure allows the company to resume full operations, Barrick said it plans to gradually restart them.
Agreement is part of plan to double investment in the sector to $25bn in eight years.
Barrick confirmed chairman John Thornton met President John Magufuli for talks Wednesday, but didn't mention the details of what, if anything, had been agreed.
Government accused the gold miner of operating illegally in the country and said it has been evading taxes.
The Robertson Property located about 96km (60 miles) south of Elko, Lander County, Nevada.
Top Chinese gold producer Shandong Mining will have to arrange financing before unlocking its half of the Veladero mine in Argentina.
Union at Barrick's troubled operation, Argentina's largest gold mine, says strike will resume if there's no deal after two weeks of talks.
Barrick's comments come on the heels of a report published this week, which claims its Tanzanian subsidiary has been under-reporting the amount of metal in its shipments to evade taxes.
Shares in gold producer Acacia Mining, one of the firms accused of eluding taxes, fell by more than 18% to 18% to 355.70 pence on the news.
An Australian company which has teamed up with the largest gold company in the world to exploit a corner of Latin America’s untapped mineral riches, says the bulk of Guyana’s gold production has only “just scratched the surface”.
Governments, industry players, unions expected to sign federal mining agreement this week, which aims to double investment in the sector to $25bn in eight years.
Local judge says the company failed to complete improvements that could have prevented the latest cyanide spill, the third such accident in less than 18 months.
Gold price under pressure.
Ongoing problems at its Veladero mine in Argentina following spill.
Barrick, Cisco, Great Basin College announce partnership providing free digital career training for employees, other northern Nevadans.
$400,000 investment will help participants pursue IT focused exploratory, foundational, and career-ready courses
Exeter shareholders will receive 0.12 of a common share of Goldcorp for each they have in the junior — that's a premium of 67% based on the part's closing prices on the day prior to the announcement.
Chinese back out of $1.5 billion deal for Barrick's Kalgoorlie stake – JV partner Newmont has long expressed interest in acquiring half of Super Pit.