DAR ES SALAAM/TORONTO (Reuters) - Barrick Gold (>> Barrick Gold Corp) said on Thursday that its African subsidiary Acacia Mining (>> Acacia Mining PLC) would pay $300 million (228.07 million pounds) and split 'economic benefits' from operations with Tanzania under a deal proposed to resolve a months-long dispute.

Earlier on Thursday, Barrick Chairman John Thornton told a news conference in Dar es Salaam that the company had agreed to pay Tanzania $300 million as a show of good faith. It clarified in a statement later that its unit Acacia would make the payment.

Tanzania will also get a 16 percent stake in Acacia's three gold mines under the framework agreement, according to Barrick and a government minister for Tanzania. Acacia said it had just received a copy of the framework agreement and was seeking clarification.

Thornton said the agreement would require approval by independent shareholders and Acacia's board of directors. Acacia's seven-member board has two directors from Barrick, one from Acacia and four independent directors.

Governments from Indonesia to South Africa are demanding greater control over mineral riches as metals prices rise. After moving into higher-risk countries to tap new deposits, mining companies are facing a rise in what is being called resource nationalism.

Barrick, the world's biggest gold miner and 63.9 percent owner of Acacia, began talks with Tanzania in June. The government banned the export of unprocessed minerals and enacted laws earlier in 2017 to increase state ownership in mines.

Acacia was served in July with a bill for $190 billion for unpaid taxes, penalties and interest. It has been accused by Tanzania of evading taxes for years by under-declaring exports.

London-listed shares of Acacia closed 16 percent higher on Thursday, reflecting investor relief at the agreement, analysts said. Barrick's stock dipped 1 Canadian cent to C$20.15.

"Further details and additional clarity are required to fully assess the impact, but terms of the settlement appear to be less punitive than initially anticipated," said BMO Capital Markets analyst Andrew Kaip in a note on Thursday.

The export ban was part of a push for the construction of a local smelter to make the country's gold exports more valuable.

Tanzania's President John Magufuli did not say whether the export ban would be lifted. Barrick and the government will form a working group to resolve Acacia's tax bill.

"Now that we are all shareholders, we can sit down over a cup of coffee and amicably resolve any outstanding issues," Magufuli said on television.

He also ordered government officials to immediately begin talks with diamond and tanzanite miners to reach similar agreements.

Tanzania is the continent's fourth-largest gold producer and Acacia is its largest miner.

Last week, Barrick said third-quarter production declined partly due to issues in Tanzania.

(Reporting by Fumbuka Ng'wanakilala, with additional reporting by Susan Taylor in Toronto; Writing by Maggie Fick; Editing by Mark Potter and David Holmes)

By Fumbuka Ng'wanakilala and Susan Taylor

Stocks treated in this article : Barrick Gold Corp, Acacia Mining PLC