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Initiation of Antidumping Duty Investigations:

Chlorinated Isocyanurates from

the People's Republic of China and Spain

On June 4, 2004, the Department announced the initiation of antidumping duty investigations on chlorinated isocyanurates (isos) from the People's Republic of China (China) and Spain.  

The U.S. International Trade Commission (ITC) is scheduled to issue its preliminary injury determination as to whether the domestic industry is materially injured, or is threatened with material injury, as a result of imports from China and Spain on or before June 28, 2004.   If the ITC should make an affirmative preliminary injury determination, the Department would be scheduled to make its preliminary determinations in October 2004.


The petitions requesting the initiation of these investigations were filed on May 14, 2004 by Clearon Corporation (NJ) and Occidental Chemical Corporation (TX).

Product Description

The products covered by these investigations are chlorinated isocyanurates.   Chlorinated isos are derivatives of cyanuric acid, described as chlorinated s-triazine triones.   Chlorinated isos are available in powder, granular, and tabletted forms.   These investigations cover all chlorinated isos regardless of end use.   Isos are used as sanitizing, disinfecting, and bleaching agents.   Principal end use applications are in swimming pool sanitizers, machine dishwashing detergents, toilet bowl cleaners, bleaches and scouring powders, and in water treatment applications.

Chlorinated isocyanurates are currently classifiable under subheading 2933.69.6050 of the Harmonized Tariff Schedule of the United States (HTSUS).   This tariff classification represents a basket category that includes chlorinated isocyanurates and other compounds including an unfused triazine ring.   Although the HTSUS item number is provided forconvenience and customs purposes, the written description of the merchandise remains dispositive.

Initiated Dumping Margins:


Initiated Margin


109.14 - 157.82%


29.68 - 42.36%

Case Calendar:



Petitions Filed

May 14, 2004

Initiation Date

June 3, 2004

ITC Preliminary Determination*

June 28, 2004

ITA Preliminary Determinations *

October 21, 2004

ITA Final Determinations*

January 4, 2005

ITC Final Determinations**

February 18, 2005

Issuance of Order***

February 25, 2005

*These deadlines may be extended under the governing statute.

** This will take place only in the event of a final affirmative determination from the Department of Commerce .

***This will take place only in the event of final affirmative determinations by both the Department and the ITC.

Import Statistics:






Volume (kg.)




Value ($US)





Volume (kg.)




Value ($US)




Source: ITC Dataweb

* The subject merchandise falls under a A basket @ category of multiple HTS numbers, and therefore data for exact import quantities and values were not available.

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