Bank of Russia expanded its gold reserves almost sixfold since the mid-2000s.

Russia is a key supplier of oil, natural gas, coal, aluminum and nickel, while Ukraine is a major grain producer.

Rusal, which is not under sanctions by the US, runs a bauxite and alumina production complex in Jamaica.

When trading resumes Wednesday, price moves for nickel will be constrained to 5% above or below the last closing price before the suspension.

Caterpillar continues to use Russia as a supply-chain route, even after the company said it had suspended business with the country.

Increasing household demand for physical gold prompted Bank of Russia to halt its purchases from banks to ensure there’s enough supply for local buyers.

The European Union excluded aluminum, copper and nickel from its latest set of trade restrictions on Russia.