China’s Ministry of Commerce (MOFCOM) has named the measure in its official notice as “Ministry of Commerce Announcement No. 39 of 2025,” a preliminary ruling that requires provisional deposits on halogenated butyl rubber (HIIR) from Canada and Japan from 14 August 2025. The ruling follows an investigation opened on 14 September 2024.
Key points
MOFCOM’s preliminary ruling finds dumping on HIIR imports from Canada and Japan and imposes provisional deposits at company-specific rates. India was dropped due to a market share below 3 percent during the period examined. [Paraphrased statement, no direct quote provided].
Covers halogenated butyl rubber, including chlorobutyl and bromobutyl grades. CN tariff codes: 40023910 and 40023990.
CountryCompanyProvisional deposit rateCanadaArlanxeo Canada Inc.26.2%CanadaAll other exporters40.5%JapanJapan Butyl Co., Ltd.13.8%JapanAll other exporters30.1%
Rates are to be lodged with Chinese customs on import from 14 August 2025.
These are provisional deposits, not final duties. MOFCOM may adjust them at the final determination. Deposit calculation, per the notice:
Deposit amount = taxable import value × deposit rate × (1 + import VAT rate).
HIIR is the standard air-retaining inner-liner compound for tubeless tyres and also appears in heat-resistant tubes and sealing applications. Any change in landed cost can move tyre production economics and pricing. See our analysis of tyre price increases in China in 2025 and our Guangrao 2025 expo coverage for wider materials context.
Importers continue to post deposits until the final decision. Exporters and importers can submit written comments to MOFCOM within 10 days of the announcement. Changes to the rates or scope may follow in the final ruling.
Disclaimer: This content may include forward-looking statements. Views expressed are not verified or endorsed by Tyre News Media.
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