Tanaka Kikinzoku Kogyo K.K., Japan's largest bullion retailer, will pay an annual interest rate of 0.55 percent to investors who buy platinum through a company plan next year as it secures increased access to metal supplies.
The interest payments offer higher returns than rates on one-year term deposits at banks and are designed to boost investment in the precious metal, Hitoshi Iijima, Tanaka's asset sales section chief, said in Tokyo.
The payments will allow Tanaka Kikinzoku, also a fabricator, to borrow metal it holds on behalf of investors and use it in manufacturing products such as vehicle emission filters.