United States Commerce found on Nov. 4, 2026, that dumping of Mexican and Chinese magnesia carbon bricks would return without duties.<\/p>\n
The U.S. Department of The U.S. Department of Commerce said on Nov. 4, 2026, that ending anti-dumping duties on magnesia carbon bricks from Mexico and China would bring back dumping.<\/p>\n
The finding comes from the third sunset review of the two duty orders. A sunset review is a check every five years on whether a duty is still needed1<\/a><\/sup>.<\/p>\n In short, nothing changes yet for a shipment of these bricks. U.S. customs keeps collecting the extra duty, and the duty stays in place unless a second agency decides otherwise.<\/p>\n Commerce published its final results in the Federal Register on Nov. 4, 2026, and they apply from that date1<\/a><\/sup>. The notice covers the anti-dumping duty orders on bricks from Mexico and from China. An anti-dumping duty is an extra import tax on goods sold abroad below their normal price.<\/p>\n Commerce found that removing the orders would likely lead to continuation or recurrence of dumping<\/strong>1<\/a><\/sup>. In plain words, it expects makers in Mexico and China to sell the bricks in the United States at unfairly low prices again if the duties end.<\/p>\n The notice also states how large that dumping would likely be. Commerce put the likely dumping margins, the size of the price gap, at up to 57.90% for Mexico<\/strong> and up to 236.00% for China<\/strong>1<\/a><\/sup>.<\/p>\n The notice was signed on Oct. 30, 2026, by Scot Fullerton, Acting Deputy Assistant Secretary for Antidumping and Countervailing Duty Operations1<\/a><\/sup>.<\/p>\n Magnesia carbon bricks are heat-resistant bricks. They are made mostly from magnesia, a mineral form of magnesium oxide, bonded with carbon. The new notice refers readers to a separate Commerce memo for the full product description1<\/a><\/sup>.<\/p>\nWhat did Commerce decide on magnesia carbon bricks?<\/h2>\n
Which bricks do the duties cover?<\/h2>\n
What makes a brick covered<\/h4>\n