A-549-502: antidumping duty order on Welded Carbon Steel Pipe & Tube from Thailand

A-549-502 is the US Department of Commerce case number for the antidumping duty order on Welded Carbon Steel Pipe & Tube from Thailand, in force since March 11, 1986, and continued after a sunset review on January 11, 2024. If your goods are in scope, you pay an antidumping cash deposit at entry on top of the normal duty.

Reviewed September 2026 against the ITA order list and the Federal Register.

Case numberA-549-502Antidumping duty (AD), market economy
ProductWelded Carbon Steel Pipe & Tube ITA commodity group: Steel-Related
CountryThailand
StatusCurrent Order
Order dateMarch 11, 1986 76 FR 66893
Latest continuationJanuary 11, 2024 89 FR 1877
Next sunset reviewDecember 2028 the month Commerce is due to start the five-year review

Rates for this case

This page does not show the rate table for this case. Your cash deposit is the rate the latest administrative review assigned to the exporter or producer on your invoice. Look it up in Commerce's ACCESS case record or ask your broker.

HTS numbers named in the scope

The notice lists these subheadings for convenience only. The written scope decides whether goods are covered, and goods entered under other HTS numbers can still be in scope.

Scope, from the order notice

scope of the order per remand. See Scope Rulings, 58 FR 27542, (May 10, 1993). --------------------------------------------------------------------------- Turkey--Welded Carbon Steel Pipe and Tube (A-489-501) The products covered by this order include circular welded non- alloy steel pipes and tubes, of circular cross-section, not more than 406.4 millimeters (16 inches) in outside diameter, regardless of wall thickness, surface finish (black, or galvanized, painted), or end finish (plain end, beveled end, threaded and coupled). Those pipes and tubes are generally known as standard pipe, though they may also be called structural or mechanical tubing in certain applications. Standard pipes and tubes are intended for the low pressure conveyance of water, steam, natural gas, air, and other liquids and gases in plumbing and heating systems, air conditioner units, automatic sprinkler systems, and other related uses. Standard pipe may also be used for light load-bearing and mechanical applications, such as for fence tubing, and for protection of electrical wiring, such as conduit shells. The scope is not limited to standard pipe and fence tubing, or those types of mechanical and structural pipe that are used in standard pipe applications. …

Excerpt from 76 FR 66893. Later scope rulings and circumvention findings can change the scope; check the Federal Register notices below.

What A-549-502 means when you import

Cash deposit at entry. For every entry of goods in scope, CBP collects an estimated antidumping duty cash deposit at the rate assigned to the exporter or producer on the entry, on top of the Column 1 duty and any Chapter 99 trade-remedy lines.

Your supplier sets your rate. The same product from two plants in Thailand can deposit at different rates. Before you price the order, ask the supplier which legal entity will appear as exporter and as producer on the invoice.

Deposit now, final duty later. The deposit is not the final duty. The entry stays unliquidated until Commerce completes the administrative review for the period it was entered in. CBP then liquidates it at the rate that review sets and bills or refunds the difference with interest. AD/CVD entries can stay open for years, and the importer of record carries the difference. A review happens only if Commerce is asked for one in the order's anniversary month; if nobody asks, entries liquidate at the deposit rate.

Reimbursement certificate. Before liquidation, the importer files a certificate under 19 CFR 351.402(f)(2) stating whether the exporter has paid or reimbursed the antidumping duty. Without it, Commerce may presume reimbursement and deduct the duty a second time in the margin calculation. Brokers file it with the entry summary; make sure yours does.

Entry reporting. The AD/CVD case number goes on the 7501 line alongside the HTS number, and any Chapter 99 lines the goods carry are reported in the order CBP prescribes; the tariff updates tracker carries the current Chapter 99 sequence and the actions behind it.

Shipping from a third country doesn't change the origin. Goods finished, cut or packaged in a third country stay in scope if the notice's written scope covers them. A change of shipping origin is not a change of AD/CVD origin.

Estimating the stack. The tariff simulator returns the Column 1 rate and the Chapter 99 additional duties for an HTS number and origin. It does not include antidumping or countervailing deposits, so add the deposit at your supplier's current rate on top. Airlift USA does not hold a US customs broker license; entries on cargo we move are filed through our licensed broker network.

Federal Register notices

All 102 notices on docket A-549-502 at federalregister.gov → · Case record in Commerce's ACCESS →

Other AD/CVD cases on goods from Thailand

Search all AD/CVD orders in place by product, country or case number →

Case list: AD/CVD Orders and Suspension Agreements, International Trade Administration, Enforcement and Compliance — ITA dashboard, export of September 2026. Notices, rates and HTS numbers: Federal Register API v1. Both are US Government works in the public domain. This page is a reference, not legal or customs advice.

Importing welded carbon steel pipe & tube from Thailand under A-549-502?

Send us the product, the exporter and producer named on the invoice, the load port, the US delivery point and the ready date. We quote the ocean freight and destination charges and explain how the entry is filed through our licensed broker network. The AD/CVD cash deposit itself is set by the rate on the entry, not by us.

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Please add: Exporter and producer on the invoice, load port, US delivery point, container type and count, ready date

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