Case numberA-517-807Antidumping duty (AD), market economy
ProductHexamine ITA commodity group: Chemicals and Allied Industries
CountrySaudi Arabia
StatusCurrent Order
Next sunset reviewDecember 2030 the month Commerce is due to start the five-year review
Rates published in the order notice
8.10%All-others weighted-average dumping margin
As printed in the order notice (91 FR 501, January 7, 2026). Your deposit today may differ: it is the rate the latest administrative review assigned to the exporter or producer on your invoice, which can be higher or lower. A company that has never been reviewed keeps the all-others rate. Check your supplier's current rate in Commerce's ACCESS case record before you price an order.
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 Orders
The scope covered by these orders include hexamine in granular
form, with a particle size of 5 millimeters or less, whether
stabilized or unstabilized, whether or not blended, mixed,
pulverized, or grounded with other products, containing 50 percent
or more hexamine by weight.
Hexamine is the common name for hexamethylene tetramine
(Chemical Abstract Service #100-97-0), and is also referred to as
1,3,5,7-tetraazaadamantanemethenamine; HMT; HMTA; 1,3,5,7-
tetraazatricyclo {3.3.1.13,7{time} decane; 1,3,5,7-tetraaza
adamantane; hexamethylenamine. Hexamine has the chemical formula
C<INF>6</INF>H<INF>12</INF>N<INF>4</INF>.
Granular hexamine that has been blended with other product(s) is
included in this scope when the resulting mix contains 50 percent or
more of hexamine by weight, regardless of whether it is blended with
inert additives, co-reactants, or any additives that undergo self-
condensation.
Subject merchandise includes merchandise matching the above
description that has been processed in a third country, including by
commingling, diluting, adding or removing additives, or performing
any other processing that would not otherwise remove the merchandise
from the scope of these orders if performed in the subject country.
Merchandise covered by the scope of these orders can be
classified in the Harmonized Tariff Schedule (HTSUS) of the United
States under the subheading 2933.69.5000. …
Excerpt from 91 FR 501. Later scope rulings and circumvention findings can change the scope; check the Federal Register notices below.
What A-517-807 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 Saudi Arabia 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.
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 hexamine from Saudi Arabia under A-517-807?
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.