United States-owned·Other manufacturing·Oita·1001–5000 employees

Amkor Technology in Japan

Japan entity: 株式会社アムコー・テクノロジー・ジャパン · Parent: Amkor Technology, Inc. · Corporate number 5320201000126 · 日本語

The Japan subsidiary of Amkor Technology, Inc. (United States), registered as 株式会社アムコー・テクノロジー・ジャパン, reports in the Ministry of Health, Labour and Welfare's women's-advancement database that women's average pay is 82.9% of men's among regular employees (as of October 2023).

Women's advancement and leave

Women in management
Not published
Median, same industry and size: 4.2%
Women's pay as % of men's, all
72.9%
Median, same industry and size: 71.9%
Women's pay as % of men's, regular
82.9%
Median, same industry and size: 74.3%
Women's pay as % of men's, non-regular
78.7%
Median, same industry and size: 77.1%
Men taking childcare leave
Not published
Median, same industry and size: 69.2%

The pay figures compare women's average pay with men's, not pay for the same job. Data as of October 2023.

Working hours and retention

Average monthly overtime
Not published
Median, same industry and size: 16.5 hrs
Paid leave taken
Not published
Median, same industry and size: 77.7%
Average tenure, men
10.0 yrs
Median, same industry and size: 16.6 yrs
Average tenure, women
8.5 yrs
Median, same industry and size: 12.6 yrs

Other foreign subsidiaries in Other manufacturing

Questions this page answers

What is the gender pay gap at Amkor Technology in Japan?
Women's average pay as a percentage of men's: 72.9% across all employees, 82.9% among regular employees, 78.7% among non-regular employees. This compares average pay, not pay for the same job.
How long do employees stay at Amkor Technology in Japan?
Average tenure is 10.0 years for men and 8.5 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.