Bangkok owner Thoresen Thai Agencies (TTA) plans to sell debentures worth up to THB 2bn ($60m) as it clears away other maturing debt.

The bulker and offshore support vessel owner said it will look to place the unsecured securities in two tranches.

The first will mature over three years and three months with a fixed coupon rate of 4.75%, and the second covers a 4.5-year