The leaders spoke for the first time since the announcement in a 30-minute call and agreed to discuss the issue further at the G7 summit in Canada later this week.
Battery production could become a major choke point for vehicle electrification as more automakers shift their model lineups to EVs and hybrids.
Vietnam is aiming to increase the use of household solar energy equipment to 12 percent by 2020, and 26 percent by 2030.
More hires are expected as brokers eye opportunities from China’s mainland exchanges opening to investors abroad.
The Black Lung Disability Trust Fund is at risk of insolvency due to soaring debt and a slashing of coal-company contributions through a scheduled tax cut.
U.S. banks worked on the En+ initial public offering in November, but some have taken a step back since the sanctions.
Canada's cabinet on Monday discussed how to protect the domestic steel and aluminum industry from U.S. tariffs.
The investment will increase the mine's copper output by 45 percent by 2020, with the value of production exceeding $2 billion annually.
The United States said it was moving ahead with tariffs on aluminum and steel imports from Canada, Mexico and the European Union.
China says implementing tariffs will void agreements.
China is Peru's top trade partner and imports most of the minerals the South American country produces.
The Shareholders Gold Council (SGC), expected to be launched as early as June, will have more than a dozen investors.
Shandong Xinhai has annual nickel pig iron production capacity of around 1.2 million tonnes.
Mines Minister Winston Chitando had last month promised to remove the requirements, which he said caused panic among foreign mining firms.
Aluminium in particular shows why tariffs are such a poor trade weapon.
Trump's tariffs on Washington's closest allies also drew condemnation at home from Republican lawmakers and the country's main business lobbying group.
The Anglo-Australian miner has until mid-June to respond to the union's demands.
Petropavlovsk also said its board wanted to know the identities of the parties behind CABS and Slevin, which together own 9.1 percent of the company.
Under the planned $2.25 billion transaction, Adaro will take a 48 percent stake of Rio's current 80 percent interest in the mine.
The two companies jointly own the Coimolache mining company in Peru, and are both junior partners in large mines in Peru controlled by U.S.-based companies.
Sibanye had net debt of 23.7 billion rand ($1.9 billion) at the end of December.
The US on Thursday said it will impose tariffs on aluminum and steel imports from Canada, Mexico and the EU, reigniting fears of a global trade war.
Gold mining giants in Ghana such as Newmont, Gold Fields and AngloGold Ashanti welcome new government tests to certify the value of their exports.
Bear Creek would also consider selling a stake in the $550m Corani project in southern Peru to help pay for the project.
Regulations to implement the new code are due to be signed into law next week.