A Chinese repair yard aims to auction an abandoned panamax bulker despite not being entirely clear about its ownership or why an owner would discard the vessel in an improving market.

Officials of Zhongtian Heavy Industry (ZTHI) are set to auction the 74,700-dwt Primrose (built 2001) to recover nearly two years' of berthing and other unpaid costs.

Yard officials can only speculate on what lies behind the abandonment.