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FIRMS code

H644 Sigma-Aldrich Corporation

Deleted Foreign trade zone

This code is deleted in CBP's FIRMS list. Don't use it on new filings. FIRMSapi keeps deleted codes so lookups of old paperwork still resolve; check the port listing for a replacement.

Facility details

FIRMS code
H644
Name
Sigma-Aldrich Corporation
Address
5485 County Road V
Sheboygan Falls, WI 53085-2814
Status
Deleted (D)
Facility type
Foreign trade zone (02)
CBP port
Milwaukee, WI (3701)
CBP region
3
Last changed
2026-10-23
Data as of
2026-10-23

Pre-filing validation

Validate H644 before you file

Validation fails H644: it's deleted, the reject ACE returns as 159. Search the port for an active replacement. 

curl https://api.firmsapi.com/v1/validate \
  -H "x-api-key: $FIRMSAPI_KEY" -H "content-type: application/json" \
  -d '{"code":"H644","port":"3701","use":"ftz_admission"}'
Get a free key Validation guide

Source: U.S. Customs and Border Protection FIRMS code list, data as of 2026-10-23. FIRMSapi is not affiliated with CBP; confirm bond status and filing details in ACE.