# Light-Walled Rectangular Pipe and Tube From Mexico: Preliminary Results and Partial Rescission of Antidumping Duty Administrative Review; 2023-2024
**AGENCY:**
Enforcement and Compliance, International Trade Administration, Department of Commerce.
**SUMMARY:**
The U.S. Department of Commerce (Commerce) is conducting an administrative review of the antidumping duty (AD) order on light-walled rectangular pipe and tube (LWRPT) from Mexico. We preliminarily determine that Perfiles LM, S.A. de C.V. (Perfiles) and Regiomontana de Perfiles y Tubos S. de R.L. de C.V. (Regiopytsa) made sales of subject merchandise at less than normal value during the period of review (POR) August 1, 2023, through July 31, 2024. Interested parties are invited to comment on these preliminary results.
**DATES:**
Applicable February 23, 2026.
**FOR FURTHER INFORMATION CONTACT:**
John Conniff or Charles Doss, AD/CVD Operations, Office III, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce, 1401 Constitution Avenue NW, Washington, DC 20230; telephone: (202) 482-1009 or (202) 482-4474, respectively.
**SUPPLEMENTARY INFORMATION:**
**Background**
On August 5, 2008, Commerce published in the *Federal Register* the AD order on LWRPT from Mexico. [^1] On September 20, 2024, based on timely requests for review, Commerce published a notice of initiation for this administrative review covering 17 companies. [^2]
[^1]*See Light-Walled Rectangular Pipe and Tube from Mexico, the People's Republic of China and 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) ( *Order* ).
[^2]*See Initiation of Antidumping and Countervailing Duty Administrative Reviews,* 89 FR 77079 (September 20, 2024) ( *Initiation Notice* ).
On December 9, 2024, we tolled the deadline for the preliminary results by 90 days. [^3] Due to the lapse in appropriations and Federal Government shutdown, on November 14, 2025, Commerce tolled all deadlines in administrative proceedings by 47 days [^4] 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. [^5] On July 16, 2025, and January 23, 2026, Commerce extended the deadline for the preliminary results until February 5, 2026. [^6]
[^3]*See* Memorandum, “Tolling of Deadlines for Antidumping and Countervailing Duty Proceedings,” December 9, 2024.
[^4]*See* Memorandum, “Deadlines Affected by the Shutdown of the Federal Government,” dated November 14, 2025.
[^5]*See* Memorandum, “Tolling of all Case Deadlines,” dated November 24, 2025.
[^6]*See* Memorandum, “Extension of Deadline for Preliminary Results of Antidumping Duty and Administrative Review,” dated July 16, 2025; *see also* Memorandum, “Extension of Deadline for Preliminary Results of Antidumping Duty and Administrative Review,” dated January 23, 2026.
For a complete description of the events that followed the initiation of this administrative review, *see* the Preliminary Decision Memorandum. [^7] A list of topics discussed in the Preliminary Decision Memorandum is included as Appendix I to this notice. The Preliminary 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 Preliminary Decision Memorandum can be accessed directly at * https://access.trade.gov/public/FRNoticesListLayout.aspx.*
[^7]*See* Memorandum, “Decision Memorandum for the Preliminary Results of the Administrative Review of the Antidumping Duty Order on Light-Walled Rectangular Pipe and Tube from Mexico; 2023-2024,” dated concurrently with, and hereby adopted by, this notice (Preliminary Decision Memorandum).
**Scope of the Order**
The products covered by the *Order* are light-walled rectangular pipe and tube from Mexico. For a complete description of the scope, *see* the Preliminary Decision Memorandum.
**Methodology**
Commerce is conducting this review in accordance with section 751(a)(2) of the Tariff Act of 1930, as amended (the Act). We calculated export price in accordance with section 772 of the Act. We calculated normal value in accordance with section 773 of the Act. For a full description of the methodology underlying these preliminary results, *see* the Preliminary Decision Memorandum.
**Partial Rescission of Administrative Review**
Pursuant to 19 CFR 351.213(d)(3), Commerce will rescind an administrative review when there are no entries of subject merchandise during the POR for which liquidation is suspended. [^8] Normally, upon completion of an administrative review, the suspended entries are liquidated at the AD assessment rate calculated for the review period. [^9] Therefore, for an administrative review of a company to be conducted, there must be a suspended entry that Commerce can instruct U.S. Customs and Border Protection (CBP) to liquidate at the AD assessment rate calculated for the POR. [^10]
[^8]*See, e.g., Dioctyl Terephthalate from the Republic of Korea: Rescission of Antidumping Administrative Review; 2021-2022,* 88 FR 24758 (April 24, 2023); *see also Certain Carbon and Alloy Steel Cut- to Length Plate from the Federal Republic of Germany: Recission of Antidumping Administrative Review; 2020-2021,* 88 FR 4157 (January 24, 2023).
[^9]*See* 19 CFR 351.212(b)(2).
[^10]*See* 19 CFR 351.213(d)(3).
On September 18, 2025, we notified parties of our intent to rescind this administrative review regarding the companies listed in Appendix II because there were no suspended entries of subject merchandise produced or exported by these companies during the POR, and we invited interested parties to comment. [^11] No parties commented on our intent to rescind the review, in part. In the absence of any suspended entries of subject merchandise from these companies during the POR, we are rescinding this administrative review for the companies listed in Appendix II, in accordance with 19 CFR 351.213(d)(3).
[^11]*See* Memorandum, “Notice of Intent to Rescind Review, In Part,” dated September 18, 2025.
**Rate for Companies Not Selected for Individual Examination**
For the rate for companies not selected for individual examination in an administrative review, generally, Commerce looks to section 735(c)(5) of the Act, which provides instructions for calculating the all-others rate in a less-than-fair-value investigation. Under section 735(c)(5)(A) of the Act, the all-others rate is normally “an amount equal to the weighted average of the estimated weighted-average dumping margins established for exporters and producers individually investigated, excluding any zero or *de minimis* margins, and any margins determined entirely {on the basis of facts available}.” In this administrative review, we calculated weighted-average dumping margins for Perfiles and Regiopytsa that are not zero, *de minimis,* or based entirely on total facts available. For the respondents that were not selected for individual examination in this administrative review, we have assigned to them the weighted-average dumping margins based on the publicly-ranged versions of the net U.S. quantities calculated for Perfiles and Regiopytsa, consistent with the guidance in section 735(c)(5)(B) of the Act. [^12]
[^12]*See* Preliminary Decision Memorandum at “Companies Not Selected For Individual Examination;” *see also* Memorandum, “Calculation of Non-Selected Rate in Preliminary Results,” dated concurrently with this notice; and *Ball Bearings and Parts Thereof from France, Germany, Italy, Japan, and the United Kingdom: Final Results of Antidumping Duty Administrative Reviews, Final Results of Changed-Circumstances Review, and Revocation of an Order in Part,* 75 FR 53661, 53663 (September 1, 2010).
*Preliminary Results of the Review*
Commerce preliminarily determines the following estimated weighted-average dumping margins exist for the POR:
| Producer/exporter | Weighted-average dumping margin |
| --- | --- |
| Perfiles LM, S.A. de C.V | 11.77 |
| Regiomontana de Perfiles y Tubos S. de R.L. de C.V | 7.70 |
| Aceros Cuatro Caminos S.A. de C.V./Productos Laminados de Monterrey S.A. de C.V. | 9.66 |
| Maquilacero S.A. de C.V./Tecnicas de Fluidos S.A. de C.V. | 9.66 |
| Ternium Mexico S.A. de C.V | 9.66 |
**Disclosure**
Commerce intends to disclose its calculations and analysis performed to interested parties in these preliminary results within five days of any public announcement or, if there is no public announcement, within five days of the date of publication of this notice in the *Federal Register* , in accordance with 19 CFR 351.224(b).
[^13] Commerce has previously found Aceros Cuatro Caminos S.A. de C.V./Productos Laminados de Monterrey S.A. de C.V. to comprise a single entity. *See, e.g., Light-Walled Rectangular Pipe and Tube from Mexico: Final Results of Antidumping Duty Administrative Review; 2015-2016,* 83 FR 10664 (March 12, 2018).
[^14] Commerce has previously found Maquilacero and TEFLU to comprise a single entity. *See, e.g., Light-Walled Rectangular Pipe and Tube from Mexico: Final Results of Antidumping Duty Administrative Review; 2018-2019,* 86 FR 33646 (June 25, 2021), and accompanying Issues and Decision Memorandum at Comment 9.
**Public Comment**
Case briefs and other written comments may be submitted to the Assistant Secretary for Enforcement and Compliance. Pursuant to 19 CFR 351.309(c), we have modified the deadline for interested parties to submit case briefs to Commerce to no later than 21 days after the date of publication of this notice. Rebuttal briefs, limited to issues raised in the case briefs, may be filed not later than five days after the date for filing case briefs. [^15] Interested parties who submit case briefs or rebuttal briefs in this proceeding must submit: (1) a table of contents listing each issue; and (2) a table of authorities. [^16] An electronically filed document must be received successfully in its entirety in ACCESS by 5:00 p.m. Eastern Time (ET) on the established deadline.
[^15]*See* 19 CFR 351.309(d); *see also Administrative Protective Order, Service, and Other Procedures in Antidumping and Countervailing Duty Proceedings,* 88 FR 67069, 67077 (September 29, 2023) ( *APO and Service Final Rule* ).
[^16]*See* 19 CFR 351.309(c)(2) and (d)(2).
As provided under 19 CFR 351.309(c)(2)(iii) and (d)(2)(iii), we request that interested parties provide at the beginning of their briefs a public, executive summary for each issue raised in their briefs. [^17] Further, we request that interested parties limit their public executive summary of each issue to no more than 450 words, not including citations. We intend to use the public executive summaries as the basis of the comment summaries included in the issues and decision memorandum that will accompany the final results in this administrative review. We request that interested parties include footnotes for relevant citations in the public executive summary of each issue. Note that Commerce has amended certain of its requirements pertaining to the service of documents in 19 CFR 351.303(f). [^18]
[^17] We use the term “issue” here to describe an argument that Commerce would normally address in a comment of the Issues and Decision Memorandum.
[^18]*See APO and Service Final Rule.*
Pursuant to 19 CFR 351.310(c), interested parties who wish to request a hearing must submit a written request to the Assistant Secretary for Enforcement and Compliance, filed electronically via ACCESS. An electronically filed hearing request must be received successfully in its entirety by Commerce's electronic records system, ACCESS, by 5:00 p.m. ET within 30 days after the date of publication of this notice. [^19] Hearing requests should contain: (1) the party's name, address and telephone number; (2) the number of participants; (3) whether any participant is a foreign national; and (4) a list of issues to be discussed. Issues raised in the hearing will be limited to those raised by each party in their respective case and rebuttal briefs. An electronically filed request must be received successfully in its entirety by ACCESS by 5:00 p.m. Eastern Time, within 30 days of the publication date of this notice. If a request for a hearing is made, parties will be notified of the time and date of the hearing. [^20]
[^19]*See* 19 CFR 351.301(c).
[^20]*See* 19 CFR 351.310(d).
**Final Results of Review**
Unless the deadline is extended pursuant to section 751(a)(3)(A) of the Act and 19 CFR 351.213(h)(2), Commerce intends to issue the final results of this administrative review, including the results of our analysis of the issues raised in any case briefs, not later than 120 days after the date of publication of this notice.
**Assessment Rates**
Pursuant to section 751(a)(2)(A) of the Act and 19 CFR 351.212(b)(1), Commerce will determine, and CBP shall assess, antidumping duties on all appropriate entries of subject merchandise in accordance with the final results of this review. Commerce intends to issue assessment instructions to CBP no earlier than 41 days after the date of publication of the final results of this review in the *Federal Register* in accordance with 19 CFR 356.8(a).
If the weighted-average dumping margin for Perfiles or Regiopytsa is not zero or *de minimis* ( *i.e.,* less than 0.5 percent) in the final results of this review, we will calculate importer-specific *ad valorem* assessment rates for the merchandise based on the ratio of the total amount of dumping calculated for the examined sales made during the POR to each importer and the total entered value of those same sales, in accordance with 19 CFR 351.212(b)(1). Where we do not have entered values for all U.S. sales to a particular importer, we will calculate an importer-specific, per-unit assessment rate on the basis of the ratio of the total amount of dumping calculated for the importer's examined sales to the total quantity of those sales. [^21] To determine whether an importer-specific, per-unit assessment rate is *de minimis,* in accordance with 19 CFR 351.106(c)(2), we also will calculate an importer-specific *ad valorem* ratio based on estimated entered values. Where an importer-specific *ad valorem* assessment rate is zero or *de minimis* in the final results of review, we will instruct CBP to liquidate the appropriate entries without regard to antidumping duties, in accordance with 19 CFR 351.106(c)(2). If a respondent's weighted-average dumping margin is zero or *de minimis* in the final results of review, we will instruct CBP not to assess duties on any of its entries in accordance with the *Final Modification for Reviews, i.e.,* “{w}here the weighted-average margin of dumping for the exporter is determined to be zero or *de minimis,* no antidumping duties will be assessed.” [^22] For entries of subject merchandise during the POR produced by Perfiles or Regiopytsa for which the producer did not know its merchandise was destined for the United States, we will instruct CBP to liquidate unreviewed entries at the all-others rate if there is no rate for the intermediate company (or companies) involved in the transaction. [^23]
[^21]*See* 19 CFR 351.212(b)(1).
[^22]*See Antidumping Proceedings: Calculation of the Weighted-Average Dumping Margin and Assessment Rate in Certain Antidumping Proceedings; Final Modification,* 77 FR 8101, 8102 (February 14, 2012) ( *Final Modification for Reviews* ).
[^23]*See Antidumping and Countervailing Duty Proceedings: Assessment of Antidumping Duties,* 68 FR 23954 (May 6, 2003).
For the companies which were not selected for individual examination, we will instruct CBP to assess antidumping duties at an *ad valorem* assessment rate equal to the company-specific weighted-average dumping margin determined in these final results. For the companies for which this review is being rescinded, antidumping duties shall be assessed at a rate equal to the cash deposit of estimated antidumping duties required at the time of entry, or withdrawal from warehouse, for consumption, in accordance with 19 CFR 351.212(c)(1)(i). Commerce intends to issue assessment instructions to CBP for the companies listed in Appendix II to this notice no earlier than 41 days after the date of publication of this notice in the *Federal Register* , in accordance with 19 CFR 356.8(a).
**Cash Deposit Requirements**
The following cash deposit requirements will be effective upon publication of the final results of this administrative review for all shipments of the subject merchandise entered, or withdrawn from warehouse, for consumption on or after the publication date of the final results of this administrative review, as provided by section 751(a)(2)(C) of the Act: (1) the cash deposit rate for each company listed above will be that established in the final results of this administrative review, except if the rate is less than 0.50 percent, and therefore, *de minimis* within the meaning of 19 CFR 351.106(c)(1), in which case the cash deposit rate will be zero; (2) for previously reviewed or investigated companies not listed above, the cash deposit rate will continue to be the company-specific rate published for the most recently completed segment of this proceeding in which the company participated; (3) if the exporter is not a firm covered in this review, a prior review, or in the investigation but the producer is, the cash deposit rate will be the rate established for the most recently completed segment of this proceeding for the producer of the merchandise; and (4) the cash deposit rate for all other producers or exporters will continue to be the all-others rate of 3.76 percent, the rate established in the investigation of this proceeding. [^24] These cash deposit requirements, when imposed, shall remain in effect until further notice.
[^24]*See Order,* 73 FR at 45405.
**Notification to Importers**
This notice serves as a preliminary reminder to importers of their responsibility under 19 CFR 351.402(f)(2) to file a certificate regarding the reimbursement of antidumping duties prior to liquidation of the relevant entries during this review period. Failure to comply with this requirement could result in Commerce's presumption that reimbursement of antidumping duties occurred and the subsequent assessment of double antidumping duties.
**Notification to Interested Parties**
We are issuing and publishing these preliminary results in accordance with sections 751(a)(1) and 777(i)(1) of the Act, and 19 CFR 351.221(b)(4).
Dated: February 5, 2026.
Christopher Abbott,
Deputy Assistant Secretary for Policy and Negotiations, performing the non-exclusive functions and duties of the Assistant Secretary for Enforcement and Compliance.
**Appendix I**
**List of Topics Discussed in the Preliminary Decision Memorandum**
I. Summary
II. Background
III. Scope of the *Order*
IV. Discussion of the Methodology
V. Currency Conversion
VI. Recommendation
**Appendix II**
**Companies Rescinded From Review**
1. Acro Metal S.A. de C.V.
2. Fabricaciones y Servicios de Mexico
3. Galvak, S.A. de C.V.
4. Grupo Estructuras y Perfiles
5. Industrias Monterrey S.A. de C.V.
6. Internacional de Aceros, S.A. de C.V.
7. Nacional de Acero S.A. de C.V.
8. PEASA-Productos Especializados de Acero
9. Talleres Acero Rey S.A. de C.V.
10. Tuberia Laguna, S.A. de C.V.
11. Tuberias Aspe S.A. de C.V.
12. Tuberias y Derivados S.A. de C.V.