USITC Maintains Antidumping and Countervailing Duty Orders on Calcium Hypochlorite from China

ITC News Releases

Filed January 29th, 2026

Detected February 11th, 2026

Summary

The U.S. International Trade Commission (USITC) has determined to maintain existing antidumping and countervailing duty orders on calcium hypochlorite from China. This decision follows five-year sunset reviews, concluding that revoking the orders would likely lead to the continuation or recurrence of material injury. The existing orders will remain in place.

View original document View source feed page

What changed

The U.S. International Trade Commission (USITC) has issued a final determination in its five-year (sunset) review concerning antidumping and countervailing duty orders on calcium hypochlorite from China. The Commission voted affirmatively, determining that revoking the existing orders would likely lead to the continuation or recurrence of material injury to the domestic industry. Consequently, the existing orders will remain in effect.

This decision means that importers and manufacturers dealing with calcium hypochlorite from China will continue to be subject to these duties. The USITC's determination is binding and reinforces the current trade protections. Regulated entities should continue to comply with the existing antidumping and countervailing duty requirements as the orders remain in place indefinitely until a future review or revocation.

What to do next

Continue compliance with existing antidumping and countervailing duty orders on calcium hypochlorite from China.

Source document (simplified)

USITC.gov will be periodically unavailable between 5:30 p.m. and 8:30 p.m. ET on Wednesday February 18th, 2026, to conduct system maintenance. Please plan your activities accordingly.

USITC Makes Determinations in Five-Year (Sunset) Reviews Concerning Calcium Hypochlorite from China

January 29, 2026
News Release 26 - 017
Inv. No(s).

  701-TA-510 ,

  731-TA-1245

Contact: Jennifer Andberg, 202-205-1819 USITC Makes Determinations in Five-Year (Sunset) Reviews Concerning Calcium Hypochlorite from China

The U.S. International Trade Commission (Commission or USITC) today determined that revoking the existing antidumping and countervailing duty orders on calcium hypochlorite from China would likely lead to continuation or recurrence of material injury within a reasonably foreseeable time.

As a result of the Commission’s affirmative determinations, the existing orders on imports of this product from China will remain in place.

Chair Amy A. Karpel and Commissioners David S. Johanson and Jason E. Kearns voted in the affirmative.

Today’s action comes under the five-year (sunset) review process required by the Uruguay Round Agreements Act. See the attached page for background on these five-year (sunset) reviews.

The Commission’s public report, Calcium Hypochlorite from China (Inv. Nos. 701-TA-510 and 731-TA-1245 (Second Review), USITC Publication 5701, February 2026), will contain the views of the Commission and information developed during the reviews.

The report will be available by March 6, 2026; when available, it may be accessed on the USITC website.

BACKGROUND

The Uruguay Round Agreements Act requires the Department of Commerce to revoke an antidumping or countervailing duty order, or terminate a suspension agreement, after five years unless the Department of Commerce and the USITC determine that revoking the order or terminating the suspension agreement would be likely to lead to continuation or recurrence of dumping or subsidies (Commerce) and of material injury (USITC) within a reasonably foreseeable time.

The Commission’s institution notice in five-year reviews requests that interested parties file responses with the Commission concerning the likely effects of revoking the order under review as well as other information. Generally, within 95 days from institution, the Commission will determine whether the responses it has received reflect an adequate or inadequate level of interest in a full review. If responses to the USITC’s notice of institution are adequate, or if other circumstances warrant a full review, the Commission conducts a full review, which includes a public hearing and issuance of questionnaires.

The Commission generally does not hold a hearing or conduct further investigative activities in expedited reviews. Commissioners base their injury determination in expedited reviews on the facts available, including the Commission’s prior injury and review determinations, responses received to its notice of institution, data collected by staff in connection with the reviews, and information provided by the Department of Commerce.

The five-year (sunset) reviews concerning Calcium Hypochlorite from China were instituted on June 2, 2025.

On September 5, 2025, the Commission determined to conduct expedited five-year reviews. Chair Amy A. Karpel and Commissioners David S. Johanson and Jason E. Kearns concluded that the domestic interested party group responses were adequate and the respondent interested party group responses were inadequate, and voted for expedited reviews.

A record of the Commission’s vote to conduct expedited reviews is available on the investigations page for Calcium Hypochlorite from China; Inv. No. 701-TA-510 and 731-TA-1245 (Second Review).