(Bloomberg) -- Hitachi Ltd. sold Japan’s biggest digital corporate bonds in a relatively young market, building on demand for such securities. 

The five-year green bonds priced on Thursday at a coupon of 0.598%, said Emiri Matsuo of Hitachi’s treasury division financing department. Nippon Life Insurance Co. said it bought half of the ¥10 billion yen ($68 million) offering. The digital securities were also sold to life insurers, central public institutions and other corporates, Matsuo said.  

Japan’s once-staid corporate debt market has been turning toward more innovative issuance in recent months to attract demand: a company with no credit rating conducted a public offering of securities for the first time, while SoftBank Corp. sold the nation’s first bond-type class shares publicly. 

For digital securities, a bank-funded blockchain platform has been created, and trading on an exchange is due to begin at the end of this month. 

Tokyo-based Hitachi would consider selling such securities again, Matsuo said. 

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