Drugs

Chengdu KeCheng Fine Chemicals Co., Ltd.

FDA issued a warning letter to Chengdu KeCheng Fine Chemicals Co., Ltd. (Chengdu Shi, Sichuan Sheng, China) on Jun 20, 2023. Subject: CGMP, Active Pharmaceutical Ingredient (API), Adulterated.

From the letter: “You failed to respond to these attempted communications or otherwise provide the requested records or other information.”

Chengdu Shi, Sichuan Sheng, ChinaIssued Jun 20, 2023Posted Jun 27, 2023No close-out recorded

At a glance

What a reviewer notes before reading: findings, citations, the response deadline and what the letter warns of.

Violations
2 findings · 2 issue types
Cited
No CFR or ISO section
Response due
Not stated in the letter
FDA asks for
2 actions
Named as possible actions
Import alert, refusal of admission
Issued by
Center for Drug Evaluation and Research
Published status
No close-out recorded

AI assisted findings

Model-assisted reading of each issue. Open one to see the FDA text it comes from, and check it against the full letter.

01Records & data integrityThe firm failed to respond to multiple FDA records requests and communications, violating section 704(a)(4) and constituting a prohibited act under section 301(e).
You failed to respond to these attempted communications or otherwise provide the requested records or other information.
02Registration, listing & premarketFDA placed the firm on Import Alert 66-79 because it had no indication of the level of quality assurance for drugs.
Because your API firm failed to respond to the section 704(a)(4) records requests and associated communication attempts, we have no indication of the level of quality assurance for drugs listed as manufactured at your facility.

What FDA requested

  • Respond to the FDA requesting to schedule an inspection
  • Provide information for consideration as FDA continues to assess your activities and practices

FDA Warning Letter

11 paragraphs · 1 section

Text as published on FDA.gov, retrieved Oct 21, 2026. Layout added for reading; the wording is FDA’s. View on FDA.gov (opens in a new tab)

DatedJune 20, 2023
AddressedDear Mr. Ye

1Letter text

6 paragraphs

Your firm was registered with the United States Food and Drug Administration (FDA or Agency) as a manufacturer of several active pharmaceutical ingredients (APIs). A review of import records showed multiple shipments of API into the U.S. which declared Chengdu KeCheng Fine Chemicals Co., Ltd. as the drug manufacturer. On July 18, 2022, the FDA sent an electronic request for records and other information pursuant to section 704(a)(4) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), 21 U.S.C. 374(a)(4), to the contact e-mail address provided in your registration file. This request went unanswered. A second request was sent via email on August 8, 2022, followed by a telephone call from the FDA to you on October 24, 2022, regarding this matter. During the telephone call, you refused to provide your full name or an alternate email address for further communication. You stated that your firm was not shipping products to the U.S. and that you would deregister your firm as a drug establishment. However, your firm has continued to ship API to the U.S. as recently as January 2023. The Agency sent a follow-up electronic request for such records and other information on March 9, 2023. You failed to respond to these attempted communications or otherwise provide the requested records or other information. Pursuant to section 704(a)(4), FDA’s request and follow-up communications included a sufficient and clear description of the records sought.

It is a prohibited act under section 301(e) of the FD&C Act (21 U.S.C. 331(e)) to refuse to permit access to or copying of any record as required by section 704(a). Because your API firm failed to respond to the section 704(a)(4) records requests and associated communication attempts, we have no indication of the level of quality assurance for drugs listed as manufactured at your facility.

FDA placed all drugs and drug products manufactured by your firm on Import Alert 66-79 on June 8, 2023.

Until FDA is able to confirm compliance with CGMP and other applicable requirements, we may withhold approval of any new applications or supplements listing your firm as a drug manufacturer. In addition, shipments of articles manufactured at Chengdu KeCheng Fine Chemicals Co., Ltd., Floor 9, No. 18 Chuangye Road, Chengdu High-Tech District, Chengdu, Sichuan into the U.S. that appear to be adulterated or misbranded are subject to being detained or refused admission pursuant to section 801(a)(3) of the FD&C Act, 21 U.S.C. 381(a)(3).

After you receive this letter, respond to this office in writing within 15 working days. In response to this letter, you may provide information for our consideration as we continue to assess your activities and practices, and/or submit a request to schedule an FDA inspection.

Send your electronic reply to CDER-OC-OMQ-Communications@fda.hhs.gov. Identify your response with FEI 3014675751 and ATTN: Joel Hustedt.

Sincerely, /S/ Francis Godwin Director Office of Manufacturing Quality Office of Compliance Center for Drug Evaluation and Research, FDA

CC: Registered U.S. Agent Santec Chemicals Corp. 96 Gazza Boulevard Farmingdale, NY 11735 Email: wilson.jiao@santecchemcorp.com

Citations and trends

Each 21 CFR section, ISO 13485 clause and issue type in this letter, how often it appears across all letters, and its trend by the year FDA issued the letters. 2026 runs to Nov 3, 2026, compared with the same dates last year. Select a row or a bar to see those letters in Letters. As cited in this historical letter, not a statement of current requirements.

This letter cites no 21 CFR section or ISO 13485 clause.

Issue types

Record details

Issuing center
Center for Drug Evaluation and Research
Issuing office
Center for Drug Evaluation and Research
Location
Chengdu Shi, Sichuan Sheng, China
Letter posted date
Jun 27, 2023
Letter issue date
Jun 20, 2023
Addressed to
General Manager
Inspection dates
Not recorded
Response window
Not verified in this snapshot. Consult the original letter.
Record length
506 words · 0 recorded redactions
Published status
No published close-out
Original letter
View on FDA.gov (opens in a new tab)
Dataset last checked
Nov 11, 2026 · How this is built

A response window is not a calculated due date. Source excerpts are selected passages. Finding interpretations and categories are model-assisted. Verify the original letter before relying on a finding.

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