Export-destination Herfindahl-Hirschman Index fell from 2,614 in 2020 to 2,246 in 2025.
The Herfindahl-Hirschman Index (HHI) turns export-market diversification into one number. Taiwan’s export-market concentration declined after 2020 as China/Hong Kong’s share fell and ASEAN and United States shares rose. In 2025 the index moved higher because the United States share jumped to 30.9%. This is a same-source derived chart with a transparent concentration formula.
Source 1: Annual External Trade Report in 2025
Publisher: Ministry of Finance, R.O.C.
Dataset/table: Annual External Trade Report in 2025
Units: US$ billion; percent
Date checked: 2026-05-14
Evidence: Supports 2025 Taiwan export/import totals, commodity groups, market values and shares.
Note: Supports 2025 Taiwan export/import totals, commodity groups, market values and shares.
2025 uses Korea folded into the other bucket for comparability with the six-bucket historical series.
Uses Ministry of Finance annual export-market shares; the Herfindahl-Hirschman Index equals the sum of squared shares across China/Hong Kong, United States, ASEAN, Europe, Japan and others.
All shares come from Ministry of Finance annual trade reports; the Herfindahl-Hirschman Index is a transparent derived calculation.
Taiwan import supplier HHI
Herfindahl-Hirschman concentration was about 3,400 for coal suppliers versus 1,573 overall.
Taiwan re-export versus domestic-export value
2025 goods exports were US$640.7B; official trade-stat coverage excludes re-exports.
Taiwan export seasonality by market
In 2025, U.S. exports peaked in November; Europe peaked in December.