Silver Bullion Pte, a Singapore supplier of coins and bars to retail investors, opens a 600 metric ton vault tomorrow as investor demand increases.

The storage could hold silver worth $390 million at prices on March 21. The company doubled sales to 1.04 million ounces in2013 from 517,000 ounces a year earlier, said Gregor Gregersen, who founded the company in 2009. Almost all the sales were silver, he said in an interview in Singapore on March 18.