What share of managers are women at Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.?

0.0%, as reported to MHLW's women's-advancement database (as of March 2026).

What is the gender pay gap at Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.?

Women's average pay as a percentage of men's: 67.5% across all employees, 66.8% among regular employees, 63.7% among non-regular employees. This compares average pay, not pay for the same job.

How long do employees stay at Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.?

Average tenure is 17.3 years for men and 11.8 years for women.

← Metals & metal products in Saitama

Metals & metal products·Saitama·301–500 employees

Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.

Japanese name: 三井住友金属鉱山伸銅株式会社 · English rendering · Corporate number 3030001044098 · 日本語

Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd. (三井住友金属鉱山伸銅株式会社), a metals & metal products employer in Saitama with 301–500 employees, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that 0.0% of its managers are women, women's average pay is 66.8% of men's among regular employees (as of March 2026).

Women's advancement and leave

Women in management

0.0%

Median, same industry and size: 2.2%

Women among new hires

12.1%

For one employment category the company defines, so not comparable with other employers.

Women's pay as % of men's, all

67.5%

Median, same industry and size: 72.8%

Women's pay as % of men's, regular

66.8%

Median, same industry and size: 76.2%

Women's pay as % of men's, non-regular

63.7%

Median, same industry and size: 70.8%

Men taking childcare leave

Not published

The pay figures compare women's average pay with men's, not pay for the same job. Data as of March 2026.

Working hours and retention

Average monthly overtime

Not published

Median, same industry and size: 15.3 hrs

Paid leave taken

Not published

Median, same industry and size: 74.5%

Average tenure, men

17.3 yrs

For one employment category the company defines, so not comparable with other employers.

Average tenure, women

11.8 yrs

For one employment category the company defines, so not comparable with other employers.

Metals & metal products in Saitama

Porite Co., Ltd.Women managers 1.3%
Urano Co., Ltd.Women managers 0.0%
Nihon Chiko Co., Ltd.Women managers 0.0%
Yoshino Denka Kogyo Co., Ltd.Women managers 13.8%
Asahi Kogyo Co., Ltd.Women managers 2.1%
Fuji Kogyo Co., Ltd.Women managers 9.0%

Every metals & metal products employer in Saitama →

Questions this page answers

What share of managers are women at Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.?: 0.0%, as reported to MHLW's women's-advancement database (as of March 2026).
What is the gender pay gap at Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.?: Women's average pay as a percentage of men's: 67.5% across all employees, 66.8% among regular employees, 63.7% among non-regular employees. This compares average pay, not pay for the same job.
How long do employees stay at Mitsui Sumitomo Metal Mining Brass and Copper Co., Ltd.?: Average tenure is 17.3 years for men and 11.8 years for women.

Japan Human Capital Data 2026

Every figure for about 36,000 unlisted employers and 3,789 listed companies at once: percentile ranks within each industry and size band, women among supervisors, ten-year retention by gender, women's leave uptake, and every foreign-owned subsidiary flagged with its parent. In a members' dashboard and as Excel and CSV.

What Professional includes

Source: Ministry of Health, Labour and Welfare, women's-advancement database (open data), as of 2026-10-06; figures are self-reported by each employer and checked for plausibility by The Hardest Market. 女性の活躍推進企業データベースオープンデータ（2026年10月6日時点）を加工して作成.