STHI Holding has raised a total of $475 million in a sale of senior secured notes, Reuters reports. The bonds, which carry a coupon rate of 8%, will mature on March 15, 2018.

The securities were sold in the 144a private placement market by the sterilization and ionization services provider. The joint book-running managers for the sale were JP Morgan, Bank of America Merrill Lynch, UBS and Morgan Stanley.

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