The U.S. and the European Union said more sanctions may follow. Among the companies affected by the penalties announced Wednesday were Rosneft, Russia's top oil company, natural gas producer Novatek, Gazprombank, the country's third- largest lender, and eight defense firms.
Russia is the world's biggest source of palladium, used mainly for devices to control pollution from autos. The price has also climbed this year after a five-month strike crippled output in South Africa, the second-biggest producer.
On the New York Mercantile Exchange, palladium futures for September delivery climbed 1 percent to $885.10 an ounce. Earlier, the metal reached $890, the highest since February 2001. Trading was 12 percent above the 100-day average, according to Bloomberg data.
European car sales in June rose for the 10th straight month, the longest run of gains in four years, an industry group said Thursday.
"There's a confluence of positive factors for palladium, with good car sales and supply constraints in South Africa," Robin Bhar, an analyst at Societe Generale SA in London, said in a telephone interview. "With Russia, it's more sentiment."
Platinum futures for October delivery gained 1.2 percent to $1,503.70 an ounce on the Nymex, the biggest gain in two weeks. The metal is also used in catalytic converters.
South Africa is the top producer. The strike at the three-biggest mining companies ended in June.
Silver futures for September delivery rose 1.7 percent to $21.134 an ounce on the Comex, the biggest gain in a week.
This year, palladium has jumped 23 percent, while platinum and silver gained more than 9 percent.
- Washington Post, Bloomberg