The U.S. Customs and Border Protection (CBP) announced on August 14, 2026, that it has started the first period review (POR: 2025.04.01–2025.09.30) of the antidumping duty order on rigid PVC board from China under case number A-570-098. The review covers all Chinese exporting companies and will reopen the assessment of duty rates tied to these shipments.

For exporters and importers active in this product line, the practical focus is immediate: CBP will re-examine export pricing and cost data, and the outcome may affect deposit requirements and the pace of customs clearance for new orders signed from Q3 2026 onward. Even without any change in underlying trade flows, a review of this kind can alter short-term shipment planning, landed-cost assumptions, and documentation discipline.

From the current information, the key point is not only the review itself, but the fact that it applies broadly to all Chinese exporters. That raises the compliance bar for firms handling rigid PVC board shipments into the U.S. market. Companies with ongoing or planned sales in this category will likely need to pay closer attention to transaction records, pricing consistency, and the readiness of supporting cost files used during customs processing.

What to watch next is the official review process and any follow-up announcements from CBP or related U.S. trade authorities. The most relevant signals will be whether the review leads to a practical adjustment in duty treatment, and how quickly any such change feeds into deposit handling and clearance timing for affected shipments.