2026-06-24 FDA Warning Letter: Win Woo Trading, LLC / HF Foods Group Cited for Foreign Supplier Verification Program (FSVP)
Letter issued · posted to fda.gov .
Subject as published: Foreign Supplier Verification Program (FSVP)
TL;DR
The short version: The FDA issued a warning letter to Win Woo Trading, LLC (General Manager Jia J. Zheng, Hayward, CA) on June 24, 2026, following a remote Foreign Supplier Verification Program (FSVP) inspection conducted May 7, 12, and 14, 2026, citing failure to develop and maintain FSVP plans for 12 imported food products including gelatin, tapioca starch, brown sugar, tea products, jasmine rice, and kidney beans, in violation of 21 CFR part 1, subpart L. The company submitted a June 4, 2026 response requesting a 45-business day extension but provided no supporting documentation; the FDA states it received no additional FSVP documents and requests a written response within 15 working days addressing specific corrections with documentation. The FDA warned of potential actions including food refusal, detention without physical examination, and enforcement under section 301(zz) of the FD&C Act.
Argus analysis
# FDA Warning Letter: Win Woo Trading, LLC / HF Foods Group
Win Woo Trading, LLC, operating as HF Foods Group in Hayward, California, received a warning letter from the FDA's Office of Inspections and Investigations on June 24, 2026, following a remote Foreign Supplier Verification Program (FSVP) inspection conducted May 7–14, 2026. The inspection identified significant non-compliance with FSVP requirements across twelve imported food products, including gelatin, tapioca starch, brown sugar, tea beverages, jasmine rice, and kidney beans. The company failed to develop and maintain required FSVP documentation for these items sourced from multiple foreign suppliers.
The violations center on 21 CFR Part 1, Subpart L, which implements section 805 of the Federal Food, Drug, and Cosmetic Act. This regulation mandates that food importers establish risk-based supplier verification programs demonstrating that imported foods meet U.S. safety standards. The FDA determined Win Woo Trading did not develop FSVPs for the listed products—a foundational requirement rather than a procedural deficiency. Additionally, the company's June 4 response requested a 45-business-day extension without submitting supporting documentation, which the FDA found inadequate for evaluation.
The company received 15 working days from the letter's receipt to respond with corrective action documentation and implementation evidence. The FDA indicated potential enforcement actions including detention without physical examination (DWPE) of imported foods under Import Alert #99-41 and possible refusal of admission under section 801(a)(3) of the FD&C Act. Compliance officers monitoring similar food import operations should watch for whether Win Woo Trading submits substantive FSVP documentation and whether the FDA escalates enforcement, signaling broader scrutiny of FSVP compliance among imported specialty food suppliers.
Severity context
Low severity. Procedural or narrow scope; most peer companies resolve in the 15-business-day response window without structural change.
Regulatory background
FDA Warning Letters are administratively non-binding but signal that recurring non-compliance may escalate to injunction, seizure, import alert, or Application Integrity Policy invocation.
What peer compliance teams typically do next
Most compliance officers at peer companies use a Warning Letter against a named entity as a checklist for their own CAPA program. Common steps: pull the verbatim FDA letter; map each cited 21 CFR section against the team’s SOP library; confirm CAPA coverage; brief the QMR (Quality Management Review) on whether the cited subject matter is in scope for the next internal audit. The 15-business-day response window applies to the cited entity, not to peers — but a documented internal review against the cited subjects is what regulators expect to see if a peer is later inspected on the same topic.
Excerpt from the FDA Warning Letter (public domain, 17 USC §105)
WARNING LETTER Win Woo Trading, LLC / HF Foods Group MARCS-CMS 732696 — June 24, 2026 More Warning Letters Warning Letters About Warning and Close-Out Letters Delivery Method: Via Express Delivery Product: Food & Beverages Recipient: Recipient Name Jia J. Zheng Recipient Title General Manager Win Woo Trading, LLC / HF Foods Group 31056 Genstar Rd Hayward , CA 94544 United States info@hffoodsgroup.com Issuing Office: Office of Inspections and Investigations United States June 24, 2026 WARNING LETTER Re: CMS 732696 Dear Mr. Zheng: On May 7, 12, & 14, 2026 the Food and Drug Administration (FDA) conducted a remote Foreign Supplier Verification Program (FSVP) inspection of Win Woo Trading, LLC located at 31056 Genstar Rd, Hayward, CA 94544. This inspection was conducted to determine compliance with the requirements of section 805 of the Federal Food, Drug, and Cosmetic Act (FD&C Act) (21 U.S.C. 384a) and the implementing FSVP regulation in 21 CFR part 1, subpart L. The FSVP regulation requires that importers perform certain risk-based activities to verify that human and/or animal food they import into the United States has been produced in a manner that meets applicable U.S. food safety standards. You may find information relating to the FSVP regulation and your responsibilities to comply with the regulation through links in FDA’s FSVP web page at https://www.fda.gov/food/food-safety-modernization-act-fsma/fsma-final-rule-foreign-supplier-verification-programs-fsvp-importers-food-humans-and-animals. During the inspection, we found that you are not in compliance with the requirements of 21 CFR part 1, subpart L for the following foods you import: Gelatin imported from (b)(4) located in (b)(4) Tapioca Starch Product imported from (b)(4) located in (b)(4) Gelatin imported from (b)(4) located in (b)(4) Brown Sugar imported from (b)(4) located in (b)(4) Tapioca Starch Product imported from (b)(4) located in (b)(4) Beverage Base Powder (Green Tea Powder) imported from (b)(4) located in (b)(4) Jasmine Rice imported from (b)(4) located in (b)(4) Oolong Tea imported from (b)(4) located in (b)(4) Green Tea imported from (b)(4) located in (b)(4) Kidney Bean imported from (b)(4) located in (b)(4) Gelatin imported from (b)(4) located in (b)(4) Beverage Base Powder imported from (b)(4) located in (b)(4) Because of these significant violations, you are not in compliance with section 805 of the FD&C Act. At the conclusion of the inspection, our investigator provided you with a Form FDA 483a FSVP Observations. We acknowledge receipt of your response dated June 4, 2026, submitted by (b)(6), (b)(7)(C) , buyer, in which you requested a 45-business day extension and contained no documents for review. We are unable to evaluate the adequacy of your response because you have not provided any supporting documentation demonstrating your corrective actions. To date, no additional FSVP documents have been received by FDA. Your significant violations of the FSVP regulation are as…
Excerpt only. The full verbatim Warning Letter is the source of truth — always read the original before regulatory decisions.
The verbatim FDA Warning Letter is the source of truth. Always read the original before acting on any analysis or summary on this page.
Read the full letter on fda.gov ↗Frequently asked questions
- What does a "low" severity rating mean for this letter?
- Low severity. Procedural or narrow scope; most peer companies resolve in the 15-business-day response window without structural change.
- What is the regulatory background for a Warning Letter warning letter?
- FDA Warning Letters are administratively non-binding but signal that recurring non-compliance may escalate to injunction, seizure, import alert, or Application Integrity Policy invocation.
- What is the standard FDA response window for a warning letter?
- FDA warning letters typically require a written response within 15 working days of receipt, outlining the corrective and preventive actions the company will take.
- Has Win Woo Trading, LLC / HF Foods Group had FDA enforcement actions before?
- This is the only FDA Warning Letter Argus HQ has on file for Win Woo Trading, LLC / HF Foods Group as of 2026-07-14. Argus ingests new FDA enforcement records daily.
argus.hq
Don’t find out about the next one six weeks late.
Argus reads every FDA Warning Letter the day it publishes, summarizes it against your watchlist, and lands the ones touching your business in your inbox at 6am ET. $199/month. Cancel any time.
methodology
The analysis above is produced by Anthropic Claude Haiku 4.5 against the verbatim FDA Warning Letter excerpt and is brand-voice lint-checked before publish. The TL;DR is the same summary that ships in the customer email digest. Severity is auto-classified by Argus from the subject string and letter body using rules documented in lib/ingestion/fda-warning-letters.ts.
Argus HQ is informational only. Summaries and analyses are AI-generated and may contain errors, misclassifications, or omissions. Verify against the FDA source URL above. Argus HQ is not a law firm, accounting firm, or regulatory agency, and provides no legal, accounting, financial, medical, or regulatory advice.
Compiled by Argus HQ Research from FDA primary sources · Reviewed by Andy Gaber, Founder
Cite this record
Reusing this data in reporting or research? Here’s a ready-made citation.
Argus HQ Research (2026). 2026-06-24 FDA Warning Letter: Win Woo Trading, LLC / HF Foods Group Cited for Foreign Supplier Verification Program (FSVP). Digital Empire LLC. Retrieved from https://argushq.ai/fda/warning-letter/fda-wl-win-woo-trading-llc-hf-foods-group-2026-06-24-warning-letter
"2026-06-24 FDA Warning Letter: Win Woo Trading, LLC / HF Foods Group Cited for Foreign Supplier Verification Program (FSVP)." Argus HQ Research, Digital Empire LLC, 2026, argushq.ai/fda/warning-letter/fda-wl-win-woo-trading-llc-hf-foods-group-2026-06-24-warning-letter.
Argus HQ Research. "2026-06-24 FDA Warning Letter: Win Woo Trading, LLC / HF Foods Group Cited for Foreign Supplier Verification Program (FSVP)." Digital Empire LLC. Accessed July 15, 2026. https://argushq.ai/fda/warning-letter/fda-wl-win-woo-trading-llc-hf-foods-group-2026-06-24-warning-letter.
@misc{argushq_argushq_ai_fda_warning_letter_fda_wl_win_woo_trading_llc_hf_foods_group_2026_06_24_warning_letter_2026,
title = {2026-06-24 FDA Warning Letter: Win Woo Trading, LLC / HF Foods Group Cited for Foreign Supplier Verification Program (FSVP)},
author = {{Argus HQ Research}},
year = {2026},
publisher = {Digital Empire LLC},
url = {https://argushq.ai/fda/warning-letter/fda-wl-win-woo-trading-llc-hf-foods-group-2026-06-24-warning-letter},
note = {Accessed: July 15, 2026}
}