Mitsui Marine and Fire Insurance Company, Limited
Historical company name; the entity later merged into Mitsui Sumitomo Insurance. Used in historical or business contexts.
Mitsui Marine and Fire Insurance Company later merged to become Mitsui Sumitomo Insurance.
The name is composed of 三井 (Mitsui, the founding conglomerate), 海上 (marine), 火災 (fire), and 保険 (insurance), reflecting the company's original business lines.