FIRMS code

U152 Flint Hills Resources LLC 02

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: U152
Name: Flint Hills Resources LLC 02
Address: Tribble Rd
Corpus Christi, TX 78409
Status: Deleted (D)
Facility type: Foreign trade zone (02)
CBP port: Corpus Christi, TX (5312)
CBP region: 6
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate U152 before you file

Validation fails U152: 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":"U152","port":"5312","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.