Hello!

Tramp cargo ship is a special term for navigation and shipping, referred to as tramp ship.

Irregular here refers to an irregular transportation method in which shipping operators constantly change routes and cargo types according to changes in time, location and content of shipping needs. Then tramp ships are ships designed to meet this "irregular" demand.

In addition, currently about 80% of the world's maritime cargo volume is completed by tramp transportation.

If it is helpful to you, I hope you will adopt it.