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FDA refusal charge

FDA refusal charge UNSAFE SUB

The article appears to bear or contain a substance which is unsafe within the meaning of Section 406.

UNSAFE SUB is the FDA import refusal charge for the article appears to bear or contain a substance which is unsafe within the meaning of Section 406.; it cites sections 402(a)(2)(A) and 801(a)(3) of the FD&C Act (adulteration). FDA recorded it on 6 refused shipment lines from 5 countries between October 2016 and April 14, 2026, most often for nuts and seeds from Taiwan.

Data from FDA public records, last checked .

6
refused shipment lines carry this charge
5
countries of origin
0
import alerts name this charge

What UNSAFE SUB means

SupplierRadar has not written a plain-English version of UNSAFE SUB yet. FDA's own statement is quoted below.

FD&C Act section
402(a)(2)(A)801(a)(3)
Classification
adulteration

FDA's official statement

Copied unchanged from FDA's Refusal Charges reference table.
The article appears to bear or contain a substance which is unsafe within the meaning of Section 406.
UNSAFE SUB · 402(a)(2)(A), 801(a)(3); ADULTERATIONFDA reference table (CSV)

Countries with the most UNSAFE SUB refusals

Shipment lines carrying UNSAFE SUB, by country of origin.
UNSAFE SUB refusal lines by country
CountryLinesShare of UNSAFE SUB
Taiwan233%
China117%
Philippines117%
Thailand117%
Vietnam117%

Product categories with the most UNSAFE SUB refusals

UNSAFE SUB refusal lines by product category
CategoryLinesShare of UNSAFE SUB
Nuts and Edible Seeds233%
Fishery/Seafood Products117%
Fruit and Fruit Products (pit, subtropical and tropical fruits)117%
Spices, Flavors, and Salts117%
Multiple Food Dinners, Gravies, Sauces, and Specialties117%

Latest UNSAFE SUB refusals

The 6 most recent refused lines, through April 14, 2026, each with its FDA source.
Latest FDA refusals carrying UNSAFE SUB
DateFirmProductCharges
Co Fu Business Company, Ltd.New Taipei City, TaiwanSpices and seasoning, ground, cracked, with salt, n.e.cUNSAFE SUBLACKS N/CNO ENGLISH+1Source
Nutri-AsiaBulacan, PhilippinesSauces, n.e.cUNSAFE SUBSource
Northshop ChingmaiChiang Mai, ThailandBetel nut, shelledUNSAFE SUBSource
Hai MinhCu Chi District, VietnamBetel nut, shelledUNSAFE ADDUNSAFE SUBSource
Taishan Lvsheng FoodTaishan, ChinaEel, aquaculture harvested fishery/seafood productsUNSAFE SUBVETDRUGRESSource
Fu-Kang Food Co., Ltd.New Taipei, TaiwanPlum, dried or pasteUNSAFE COLUNSAFE SUBSource

Questions about UNSAFE SUB

What does UNSAFE SUB mean on an FDA refusal?
UNSAFE SUB is the refusal charge “The article appears to bear or contain a substance which is unsafe within the meaning of Section 406.”. FDA's official statement for the charge reads: “The article appears to bear or contain a substance which is unsafe within the meaning of Section 406.”
What law does UNSAFE SUB cite?
FDA's refusal charge table cites sections 402(a)(2)(A) and 801(a)(3) of the FD&C Act (adulteration) for UNSAFE SUB, and classifies the charge as adulteration. The table is the Refusal Charges reference file that FDA publishes with its Data Dashboard.
Which countries have the most UNSAFE SUB refusals?
As of October 26, 2026, the countries with the most UNSAFE SUB refusal lines are Taiwan (2), China (1) and Philippines (1). The full list with links is in the table on this page.
Is there an FDA import alert for UNSAFE SUB?
SupplierRadar found no food import alert whose charge section names UNSAFE SUB. An import alert is a list of firms; a charge code is the reason recorded on one refused shipment line.

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SupplierRadar is not affiliated with the U.S. Food and Drug Administration. Data comes from public FDA records and may contain errors. This is not legal advice; importers remain responsible for their supplier evaluations.