Listed company (major shareholder of other listed companies)
| Company | Shares | Stake | Price | Value | Dividends |
|---|---|---|---|---|---|
| Sumitomo Pharma Co., Ltd. 4506 · FY ending Mar 2026 |
205,634,000 | 51.76% | ¥2,084 | ¥429B | — |
| Sumitomo Bakelite Company Limited 4203 · FY ending Mar 2026 |
9,251,000 | 10.55% | ¥4,832 | ¥44.7B | ¥1.0B |
| Inabata&Co.,Ltd. 8098 · FY ending Mar 2026 |
5,591,000 | 10.42% | ¥3,964 | ¥22.2B | ¥716M |
| Taoka Chemical Company, Limited 4113 · FY ending Mar 2026 |
7,247,000 | 50.58% | ¥920 | ¥6.7B | ¥261M |
| 広栄化学株式会社 4367 · FY ending Mar 2026 |
2,731,000 | 55.85% | ¥2,429 | ¥6.6B | ¥218M |
| Sumitomo Seika Chemicals Company,Limited. 4008 · FY ending Mar 2026 |
4,195,000 | 32.43% | ¥1,186 | ¥5.0B | ¥923M |
| Okura Industrial Co.,Ltd. 4221 · FY ending Dec 2025 |
674,000 | 5.97% | ¥4,862 | ¥3.3B | ¥131M |
| Hokko Chemical Industry Co.,Ltd. 4992 · FY ending Nov 2025 |
1,968,000 | 7.63% | ¥1,631 | ¥3.2B | ¥90.5M |
| Fumakillalimited 4998 · FY ending Mar 2026 |
433,000 | 2.63% | ¥1,099 | ¥476M | ¥10.4M |
| Sankei Chemical Co.,Ltd. 4995 · FY ending Nov 2025 |
117,000 | 13.10% | ¥1,601 | ¥187M | ¥3.5M |
| Sankyo Tateyama,Inc. 5932 · FY ending May 2026 |
1,565,000 | 4.98% | — | — | ¥39.1M |