三井住友海上プライマリー生命保険
ConfidenceLikelyUpdated2026-07-30Review by2026-11-21Sources4Machine-translatedOriginal (JA)
On this page
Wiki route
This entry sits under life-insurers INDEX (its domain route). Its parent is the listed P&C group holding company MS&AD Insurance Group Holdings; the group’s protection-focused life arm is Mitsui Sumitomo Aioi Life Insurance. Read it against Pgf Life and Daiichi Frontier Life Insurance for the FI-channel annuity peer / contrast, and against the FSA plus Seiho Kyokai for the supervisory / industry-body boundary.
TL;DR
Mitsui Sumitomo Aioi Primary Life Insurance Co., Ltd. (三井住友海上プライマリー生命保険株式会社) is a life-insurance business company that holds a life-insurer license under the Insurance Business Act and is listed on the FSA’s life-insurance company license list, a 100% subsidiary of MS&AD Insurance Group Holdings. Having obtained its life-insurance business license in 2002 年 9 月 and started operations in 10 of the same year, it specializes, as a specialist company in single-premium individual annuities and savings products sold through financial-institution counter sales (bank-counter sales / bancassurance), in individual annuities — a growth field — within the MS&AD group. Even within the MS&AD group, it is treated separately from the protection-focused Mitsui Sumitomo Aioi Life Insurance.
1. License / group boundary
The following table is scoped to public primary sources (fsa.go.jp, seiho.or.jp, ms-primary.com). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ↗
| Item | Notes |
|---|---|
| Legal name | 三井住友海上プライマリー生命保険株式会社 |
| License obtained | 2002-09(life-insurance business license)/ operations started 2002-10 |
| License route | life-insurer license under the Insurance Business Act; FSA life-insurance company license list |
| Supervisor | Financial Services Agency (FSA) |
| Industry body | Seiho Kyokai member |
| Group boundary | MS&AD Insurance Group Holdings 100% subsidiary (FI-channel individual-annuity specialist) |
| Wiki role | MS&AD financial-institution-channel / annuity life insurer |
2. Operating model
MS Primary Life operates the standard life-insurer model — premium underwriting, reserving of policy reserves, asset management to match long-term liabilities (ALM), annuity and benefit payments — specialized in the financial-institution agency channel and single-premium savings products (individual annuities, foreign-currency whole life, etc.). Because it sells through the counters of partner banks and securities firms, it is highly sensitive to the inflow of large single-premium contracts and to the investment environment (interest rates, FX), and its liability profile differs greatly from face-to-face life insurers centered on protection products. Pgf Life, Daiichi Frontier Life Insurance, and Crédit Agricole Life Insurance, which share the same FI-channel, single-premium model, are direct comparison targets. For the revenue structure of bancassurance, see bancassurance economics in Japan.
3. Why this page matters
- Pins down the exact-name anchor on the FSA’s life-insurance company license list.
- Completes the MS&AD group’s life-insurance division of labor by splitting it into the protection-focused Mitsui Sumitomo Aioi Life Insurance and this page, the FI-channel individual-annuity specialist.
- Provides a single-premium annuity peer anchor for Pgf Life and Daiichi Frontier Life Insurance.
Related
- life-insurers INDEX
- MS&AD Insurance Group Holdings
- Mitsui Sumitomo Aioi Life Insurance
- Pgf Life
- Daiichi Frontier Life Insurance
- FSA
- FinWiki index
Sources
- FSA: 生命保険会社免許一覧 (life-insurance company license list).
- Life Insurance Association of Japan (生命保険協会): member-company list.
- 三井住友海上プライマリー生命 / MS&AD official profiles (100% MS&AD subsidiary; life-insurance license 2002-09, operations from 2002-10; FI-channel single-premium annuity specialist).
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