Prices as of 2026/10/30 close
Company comparison · Diversified Chemical Majors
Sumitomo Chemical is the bigger company, with revenue of ¥2.3T — 1.4x Mitsui Chemicals's ¥1.7T.
Sumitomo Chemical earns more on each yen of sales, with an operating margin of 6.5% — 2.1 points above Mitsui Chemicals (4.4%).
Revenue growth in the latest results: Mitsui Chemicals −7.8%, Sumitomo Chemical −10.7%. For next year, Sumitomo Chemical guides for the fastest operating profit growth (+16.6%).
Mitsui Chemicals pays more on average — ¥8.72M against ¥8.18M at Sumitomo Chemical.
Over the past year the shares moved Sumitomo Chemical +23.0%, Mitsui Chemicals +14.3%.
Head-to-head wins15 metrics
One win per metric for the company with the best value. Metrics with no better or worse (P/E, average age, employees) are excluded.
ScaleInvestors
Sumitomo Chemical aheadSumitomo Chemical 3 : Mitsui Chemicals 0
Revenue: Sumitomo Chemical ¥2.3T / Mitsui Chemicals ¥1.7T
ProfitabilityInvestors
Sumitomo Chemical aheadSumitomo Chemical 3 : Mitsui Chemicals 0
Operating margin: Sumitomo Chemical 6.5% / Mitsui Chemicals 4.4%
GrowthInvestors
Mitsui Chemicals aheadSumitomo Chemical 1 : Mitsui Chemicals 4
Revenue growth (YoY): Sumitomo Chemical −10.7% / Mitsui Chemicals −7.8%
Stock & balance sheetInvestors
Sumitomo Chemical aheadSumitomo Chemical 2 : Mitsui Chemicals 0
Share price, 1 year: Sumitomo Chemical +23.0% / Mitsui Chemicals +14.3%
Pay & workforceJob seekers
EvenSumitomo Chemical 1 : Mitsui Chemicals 1
Average salary: Sumitomo Chemical ¥8.18M / Mitsui Chemicals ¥8.72M
| Metric | Sumitomo Chemical | Mitsui Chemicals | Gap |
|---|---|---|---|
| Revenue | ◎¥2.3T | ¥1.7T | 1.4x |
| Operating profit | ◎¥151.7B | ¥73.8B | 2.1x |
| Net income | ◎¥60.9B | ¥34.4B | 1.8x |
| Metric | Sumitomo Chemical | Mitsui Chemicals | Gap |
|---|---|---|---|
| Operating margin | ◎6.5% | 4.4% | 2.1pt |
| Net margin | ◎2.6% | 2.1% | 0.6pt |
| Revenue per employee | ◎¥349M | ¥321M | 1.1x |
| Metric | Sumitomo Chemical | Mitsui Chemicals | Gap |
|---|---|---|---|
| Revenue growth (YoY) | −10.7% | ◎−7.8% | 2.9pt |
| Operating profit growth (YoY) | −21.4% | ◎−5.8% | 15.6pt |
| Revenue CAGRlast 5 years | +0.4% | ◎+6.6% | 6.2pt |
| Guidance: revenue growthnext FY plan | +1.4% | ◎+13.9% | 12.5pt |
| Guidance: op. profit growthnext FY plan | ◎+16.6% | +12.5% | 4.2pt |
| Metric | Sumitomo Chemical | Mitsui Chemicals | Gap |
|---|---|---|---|
| Share price, 1 year | ◎+23.0% | +14.3% | 8.7pt |
| Share price, 3 months | ◎+9.3% | −1.2% | 10.5pt |
| Share price (close) | ¥565 | ¥2,086 |
◎ marks the best value for each metric. Revenue and profit are from the latest full-year earnings release; share prices are closing-price references; P/E = latest close ÷ trailing EPS. For banks and some other financials, revenue means ordinary income.
| Metric | Sumitomo Chemical | Mitsui Chemicals | Gap |
|---|---|---|---|
| Average salary | ¥8.18M | ◎¥8.72M | ¥0.53M |
| Starting salary (monthly) | ¥280,000 | ¥280,000 | ¥0 |
| Average tenure | ◎16.3 yrs | 15.0 yrs | 1.3 |
| Average age | 42.1 | 40.0 | 2.1 |
| Employees | 6,669 | 5,198 | 1.3x |
Average salary is for the reporting (parent) company and is affected by average age and job mix. Holding companies with few employees are left out of the salary comparison.
Close (Oct 30, 2026)
¥565+23.0% (1Y)
Sumitomo Chemical +23.0% over 1Y. Compared: Mitsui Chemicals +14.3%.
Reference chart of daily closing prices, not real-time quotes (split-adjusted; weekly closes before the last year). Each line shows the % change from the start of the period. Updated Oct 30, 2026.
Sumitomo Chemical5 segments
Mitsui Chemicals4 segments
AAverage annual salary from the securities filings: Mitsui Chemicals ¥8.72M, Sumitomo Chemical ¥8.18M. Mitsui Chemicals pays the most. Averages also depend on staff age and job mix, so check the average age too (Sumitomo Chemical 42.1, Mitsui Chemicals 40.0).
ARevenue in the latest results: Sumitomo Chemical ¥2.3T, Mitsui Chemicals ¥1.7T. Sumitomo Chemical is the bigger company, with revenue of ¥2.3T — 1.4x Mitsui Chemicals's ¥1.7T.
AOperating margins: Sumitomo Chemical 6.5%, Mitsui Chemicals 4.4%. Sumitomo Chemical turns the highest share of sales into operating profit.
AShare price change over the past year (closing prices, for reference): Sumitomo Chemical +23.0%, Mitsui Chemicals +14.3%. Sumitomo Chemical has risen the most.

Comparing 2 companies (up to 4)
Sources: earnings releases (kessan tanshin), annual securities reports and other public information. Share prices are closing-price references, not real-time. Our data may contain errors; investment decisions are your own responsibility.