European Union Imposes Definitive Duties On Chinese PBTC Imports

The covered product is 2-phosphonobutane-1,2,4-tricarboxylic acid and its sodium salt, tetrasodium hydrogen 2-phosphonatobutane-1,2,4-tricarboxylate, known as PBTC, in solid form or aqueous solution. The regulation identifies CN code 2931 49 80, TARIC code 2931 49 80 60, CAS numbers 37971-36-1 and 66669-53-2, and specified CUS and European Community identifiers.

Duty Rates And Customs Conditions

The definitive duty is calculated on the net free-at-Union-frontier price before duty. Shandong Taihe Technologies Co., Ltd receives a rate of 156.7%, Jiyuan Qingyuan Water Treatment Co., Ltd 183.8%, and Nantong Uniphos Chemicals Co., Ltd 192.2%. Other cooperating companies listed in the annex receive 173.8%, while all other Chinese imports receive 192.2%.

An individual rate applies only where customs receives a valid commercial invoice containing the prescribed signed declaration and the producer's TARIC additional code. Without that invoice, the 192.2% all-other rate applies. Customs may request shipping or other evidence even when the declaration is present.

Amounts secured under provisional Regulation (EU) 2026/1045 are to be collected definitively. Any secured amount exceeding the definitive rate must be released. The regulation also provides a route for qualifying new exporters to request the 173.8% rate for cooperating companies not sampled.

Implications For Importers And Downstream Users

Importers should update customs instructions for entries from 22 September and preserve origin evidence, supplier identity, invoices and product specifications. They should validate the manufacturer's legal entity and TARIC additional code, because an invoice from a trader or a differently named entity may not support an individual rate.

Chemical distributors and downstream users should identify products containing the named PBTC substances, particularly scale-control and industrial-process formulations. Procurement teams should review duty-change clauses, Incoterms, price-adjustment mechanisms and responsibility for definitive collection of provisional amounts.

Manufacturers purchasing within the European Union should ask suppliers whether prices reflect the definitive duty and how provisional securities will be reconciled. The measure does not cover every phosphonate or phosphorus-containing chemical. The product description and identifiers in Article 1 control.

Foresight analysis: rates above 150% make producer identification and invoice wording financially critical. A documentation failure can move a shipment to the 192.2% residual rate even where the goods were manufactured by a producer assigned a lower rate.

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