MFG Calcs Signals
How Manufacturing Source Mix Changed Since 2018
The observed #1 import source in 2018 versus now, China's reported share change, and the largest gainer, for manufacturing families with an exact 2018 baseline.
What this Signal shows
- Compare observed manufacturing source-country shares from exactly 2018 to the latest reported year, by eligible family, without assigning a cause.
Cadence, source and downloads
- Cadence: Monthly, refreshed automatically as USITC posts new customs data.
- Country shares from USITC DataWeb per-family, per-country import boards; only families with an exact 2018 endpoint and reported China rows at both endpoints qualify. Full method at /signals/source-shifts.
- Free to download as Board (CSV), Full board (JSON), Methodology (JSON) under CC BY 4.0.
Last reviewed 2026-10-01.