International Arbitration & Cross-Border Litigation

Mori & Partners has extensive experience representing clients in complex international arbitration and cross-border litigation, acting for both multinational corporations and leading Japanese enterprises.
We regularly serve as counsel in disputes involving Japan-related transactions, products, and regulatory frameworks, combining deep local insight with an international disputes perspective.

Our lawyers act not only as party counsel in arbitration and litigation, but also as strategic coordinators for multi-jurisdictional disputes, working closely with overseas counsel to ensure consistency of legal strategy across jurisdictions.

Selected Representative Matters

International Arbitration

• Served as party counsel in JCAA arbitration proceedings arising out of the construction of a solar power plant.
• Acted as party counsel in ICC arbitration proceedings concerning the sale of an industrial plant facility.
• Represented a Japanese company in proceedings to set aside an arbitral award in connection with an international arbitration between a Japanese company and a U.S. company.

Cross-Border Commercial Litigation

• Represented a European manufacturer and its Japanese subsidiary in a dispute involving alleged breaches of representations and warranties in an M&A transaction.
• Acted for a U.S.-based IT company in a Tokyo District Court action concerning the interpretation of commercial contracts.
• Represented a globally recognized international hotel group in Tokyo in labor-related disputes brought by former employees.

Product Liability & Insurance-Related Disputes

• Represented an American engine manufacturer in a dispute arising from a product accident involving the Japanese subsidiary of a U.S.-based IT company.
• Acted for a Finnish heavy machinery manufacturer in a dispute concerning a product accident involving a Japanese counterparty.
• Represented a major Japanese insurance company as defendant in a reinsurance dispute with a European insurer.

Publications & Thought Leadership

Our lawyers regularly contribute to leading international publications on arbitration, insurance disputes, and cross-border litigation, including: