Japan is brokering a joint statement on the South China Sea ruling with its counterparts in the Group of Seven (G-7) advanced economies as part of a "proactive diplomacy" drive, though its own reaction to the verdict tomorrow may be muted.
Local media reports last week said the G-7 is expected to issue the statement - the group's third on maritime security since April - to pressure Beijing to respect the decision and follow international law and norms in settling disputes.
China has refused to take part in the arbitration brought against it by the Philippines over its expansive claims in the South China Sea and has said it will not recognise the ruling.