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.