On 22 February 2018, Index Initiative (one of WBA’s founding partners) organised its second Seafood Stewardship Index (SSI) roundtable in Tokyo, Japan, to engage stakeholders in the development of the SSI and to present the draft methodology outline. Participants were invited to actively provide feedback, share insights and expectations for the further development of the SSI. The event was hosted by the Embassy of the Kingdom of the Netherlands to Japan in Tokyo. This report summarises the main outcomes and valuable discussions with stakeholders during the roundtable meeting.