Prices for gallium — a metal used in semiconductors and advanced technology — jumped to their highest level since 2011 following export restrictions recently imposed by China.

China will impose tougher curbs on the amount of methane released during coal extraction in an effort to reduce emissions of the powerful climate-warming gas, the environment ministry said on Thursday.

President-elect Donald Trump said his administration would help expedite permits for any person or company that invested at least $1 billion in the US.

There’s no escaping gold in Tarkwa. It’s in the forest. It’s under your feet as you walk the streets of Ghana’s biggest mining town. It’s the economy. Exposed holes in the ground bear witness to attempts at illegally digging out some of the precious metal and a polluted river on the edge of town shows the consequences of the boom in semi-industrial scale mining.

China announced on Tuesday an immediate ban on exports of gallium, germanium and antimony to the United States, a day after the Biden administration imposed expanded restrictions on the sale of advanced US technology to China.

Canada’s uranium miners, confident that only they can meet US demand for the element after Russian supply curbs, have accelerated output and forward contracts to supply US energy companies, but they are now worried about possible tariffs from US President-elect Donald Trump.

Despite unprecedented and unfair electricity restrictions, which caused a loss of 700,000 tons of production in the first half of the year, Khuzestan Steel Company, through effective management, planning, and significant effort, successfully supplied the domestic market. The company experienced a 16% growth in the supply of steel billets, slabs, and sponge iron compared to the same period last year.

A Singapore businessman who convinced investors to put a total of S$1.5 billion ($1.1 billion) into a nickel trading scheme channeled a third of that into his own accounts, prosecutors said at the start of his trial.

President-elect Donald Trump vowed additional tariffs on Mexico, Canada and China, shaking markets with his first specific threats to the US’s top trading partners since his election win three weeks ago.

Russian aluminum producer Rusal will cut output by more than 6% in response to high global alumina prices and as tight monetary policy and an economic slowdown dampen domestic demand for the metal, the company said on Monday.