Mitsui O.S.K. Lines Ltd. has said it aims to start a project as early as next summer that involves collecting plastic waste by ship in the sea off Vietnam, one of the world's major producers of marine plastic trash.

The major Japanese shipping company said it will conduct feasibility studies for about a year from this summer in the Southeast Asian nation in coordination with the Japan International Cooperation Agency.

Mitsui O.S.K. is also eyeing a collaboration with the Vietnamese government.