# Light-Walled Rectangular Pipe and Tube From the Republic of Korea, Mexico, the Republic of Türkiye, and the People's Republic of China: Final Results of the Expedited Third Sunset Reviews of the Antidumping Duty Orders
**AGENCY:**
Enforcement and Compliance, International Trade Administration, Department of Commerce.
**SUMMARY:**
The U.S. Department of Commerce (Commerce) finds that revocation of the antidumping duty (AD) orders on light-walled rectangular pipe and tube (light-walled pipe and tube) from the Republic of Korea (Korea), Mexico, the Republic of Türkiye (Türkiye), and the People's Republic of China (China) would be likely to lead to continuation or recurrence of dumping, at the levels indicated in the “Final Results of Sunset Reviews” section of this notice.
**DATES:**
Applicable January 8, 2026.
**FOR FURTHER INFORMATION CONTACT:**
David De Falco, Trade Agreements Policy and Negotiations, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce, 1401 Constitution Avenue NW, Washington, DC 20230; telephone: 202-482-2178.
**SUPPLEMENTARY INFORMATION:**
**Background**
On May 30, 2008, Commerce published the *Türkiye Order* in the *Federal Register* . [^1] On August 5, 2008, Commerce published the *Mexico Order, China Order,* and *Korea Order* in the *Federal Register* . [^2] On July 1, 2025, Commerce published the notice of initiation of the third sunset review of the *Orders,* pursuant to section 751(c) of the Tariff Act of 1930, as amended (the Act). [^3]
[^1]*See Notice of Antidumping Duty Order: Light-Walled Rectangular Pipe and Tube from Turkey,* 73 FR 31065 (May 30, 2008) ( *Türkiye Order* ).
[^2]*See Light-Walled Rectangular Pipe and Tube from Mexico, the People's Republic of China, and the Republic of Korea: Antidumping Duty Orders; Light-Walled Rectangular Pipe and Tube from the Republic of Korea: Notice of Amended Final Determination of Sales at Less Than Fair Value,* 73 FR 45403 (August 5, 2008); and *Türkiye Order* (collectively, *Orders* ).
[^3]*See Initiation of Five-Year (Sunset) Reviews,* 90 FR 28722 (July 1, 2025).
On July 16, 2025, Commerce received a timely and complete notice of intent to participate in the sunset review from Bull Moose Company, Maruichi American Corporation, Nucor Tubular Products Inc., Searing Industries, Inc., and Vest LLC, within the deadline specified in the 19 CFR 351.218(d)(1)(i). [^4] On July 16, 2025, Commerce received a second timely and complete notice of intent to participate in the sunset review from Atlas Tube within the deadline specified in the 19 CFR 351.218(d)(1)(i). [^5] The domestic interested parties claimed interested party status under section 771(9)(C) of the Act as manufacturers, producers, and wholesalers of a domestic like product in the United States. On July 21, 2025, Commerce notified the U.S. International Trade Commission (ITC) that it had received a notice of intent to participate from the domestic interested parties. [^6]
[^4]*See* Letter, “Notice of Intent to Participate in Third Five-Year Review of the Antidumping Duty Order on Light-Walled Rectangular Pipe and Tube from the Republic of Korea,” dated July 16, 2025; Letter, “Notice of Intent to Participate in Third Five-Year Review of the Antidumping Duty Order on Light-Walled Rectangular Pipe and Tube from Mexico,” dated July 16, 2025; Letter “Notice of Intent to Participate in Third Five-Year Review of the Antidumping Duty Order on Light-Walled Rectangular Pipe and Tube from the Republic of Türkiye,” dated July 16, 2025; and Letter, “Notice of Intent to Participate in Third Five-Year Review of the Antidumping Duty Order on Light-Walled Rectangular Pipe and Tube from the People's Republic of China,” dated July 16, 2025.
[^5]*See* Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from Korea: Notice Of Intent To Participate In Sunset Review,” dated July 16, 2025; Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from Mexico: Notice Of Intent To Participate In Sunset Review,” dated July 16, 2025; Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from Turkey: Notice Of Intent To Participate In Sunset Review,” dated July 16, 2025; and Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from China: Notice Of Intent To Participate In Sunset Review,” dated July 16, 2025.
[^6]*See* Commerce's Letter, “Sunset Reviews Initiated on July 1, 2025,” dated July 21, 2025.
On July 31, 2025, pursuant to 19 CFR 351.218(d)(3)(i), domestic interested parties filed timely and adequate substantive responses. [^7] Commerce did not receive a substantive response from any respondent interested party. On August 22, 2025, Commerce notified the ITC that it did not receive substantive response from any respondent interested parties. [^8] As a result, pursuant to section 751(c)(3)(B) of the Act and 19 CFR 351.218(e)(1)(ii)(C)(2), Commerce is conducting expedited (120-day) sunset reviews of the *Orders.*
[^7]*See* Letter, “Light-Walled Rectangular Pipe and Tube from the Republic of Korea: Substantive Response to Notice of Initiation,” dated July 31, 2025; Atlas Tube's Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from Korea: Substantive Response,” dated July 31, 2025; Letter, “Light-Walled Rectangular Pipe and Tube from Mexico: Domestic Interested Parties' Substantive Response to the Notice of Initiation,” dated July 31, 2025; Atlas Tube's Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from Mexico: Substantive Response,” dated July 31, 2025; Letter, “Light-Walled Rectangular Pipe and Tube from the Republic of Turkey: Substantive Response to Notice of Initiation,” dated July 31, 2025; Atlas Tube's Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from Turkey: Substantive Response,” dated July 31, 2025; Letter, “Light-Walled Rectangular Pipe and Tube from the People's Republic of China: Substantive Response to Notice of Initiation,” dated July 31, 2025; and Atlas Tube's Letter, “Five-Year (“Sunset”) Review Of Antidumping Duty Order On Light-Walled Rectangular Pipe and Tube from China: Substantive Response,” dated July 31, 2025.
[^8]*See* Commerce's Letter, “Sunset Reviews Initiated on July 1, 2025,” dated August 22, 2025.
Due to the lapse in appropriations and Federal Government shutdown, on November 14, 2025, Commerce tolled all deadlines in administrative proceedings by 47 days. [^9] Additionally, due to a backlog of documents that were electronically filed via Enforcement and Compliance's Antidumping and Countervailing Duty Centralized Electronic Service System (ACCESS) during the Federal Government shutdown, on November 24, 2025, Commerce tolled all deadlines in administrative proceedings by an additional 21 days. [^10] Accordingly, the deadline for these final results is now January 5, 2026.
[^9]*See* Memorandum, “Deadlines Affected by the Shutdown of the Federal Government,” dated November 14, 2025.
[^10]*See* Memorandum, “Tolling of all Case Deadlines,” dated November 24, 2025.
**Scope of the Orders**
The product covered by these *Orders* is light-walled pipe and tube from Korea, Mexico, Türkiye, and China. For the full description of the scope of the *Orders, see* the Issues and Decisions Memorandum. [^11]
[^11]*See* Memorandum, “Issues and Decision Memorandum for the Final Results of the Expedited Third Sunset Reviews of the Antidumping Duty Orders on Light-Walled Rectangular Pipe and Tube from the Republic of Korea, Mexico, the Republic of Türkiye, and the People's Republic of China,” dated concurrently with, and hereby adopted by, this notice.
**Analysis of Comments Received**
A complete discussion of all issues raised in this sunset review, including the likelihood of continuation or recurrence of dumping in the event of revocation of the *Orders* and the magnitude of the margins likely to prevail if the *Orders* were to be revoked, is provided in the accompanying Issues and Decision Memorandum. [^12] A list of the topics discussed in the Issues and Decision Memorandum is attached in the Appendix to this notice. The Issues and Decision Memorandum is a public document and is on file electronically via ACCESS. ACCESS is available to registered users at *https://access.trade.gov.* In addition, a complete version of the Issues and Decision Memorandum can be directly accessed at *https://access.trade.gov/public/FRNoticesListLayout.aspx.*
[^12]*Id.*
**Final Results of Sunset Reviews**
Pursuant to sections 751(c)(1), 752(c)(1) and (3) of the Act, Commerce determines that revocation of the *Orders* would be likely to lead to continuation or recurrence of dumping, and that the magnitude of the dumping margins likely to prevail would be weighted-average dumping margins up to 30.66 percent for Korea, 11.50 percent for Mexico, 41.71 percent for Türkiye, and 255.07 percent for China.
**Notification Regarding Administrative Protective Orders**
This notice also serves as the only reminder to parties subject to administrative protective order (APO) of their responsibility concerning the return or destruction of proprietary information disclosed under APO in accordance with 19 CFR 351.305. Timely notification of the return or destruction of APO materials, or conversion to judicial protective, orders is hereby requested. Failure to comply with the regulations and terms of an APO is a violation which is subject to sanction.
**Notification to Interested Parties**
We are issuing and publishing these final results in accordance with sections 751(c), 752(c), and 777(i)(1) of the Act, and 19 CFR 351.218 and 19 CFR 351.221(c)(5)(ii).
Dated: January 5, 2026.
Abdelali Elouaradia,
Deputy Assistant Secretary for Enforcement and Compliance.
**Appendix**
**List of Topics Discussed in the Issues and Decision Memorandum**
I. Summary
II. Background
III. Scope of the *Orders*
IV. History of the *Orders*
V. Legal Framework
VI. Discussion of the Issues
1. Likelihood of Continuation or Recurrence of Dumping
2. Magnitude of the Margins of Dumping Likely to Prevail
VII. Final Results of Sunset Reviews
VIII. Recommendation