Country-wide rate
493.46%
Effective
October 6, 2016
AD/CVD case A-570-049 is a U.S. antidumping duty (AD) order on ammonium sulfate from China, issued and enforced by the U.S. Department of Commerce. It carries a country-wide cash deposit rate of 493.46%, effective October 6, 2016. The order is in active status, currently flagging 1 HTS code. Individual exporters and producers may receive their own case-specific rates through Commerce administrative reviews — see manufacturer rates linked from this page where available.
Tariff lines flagged by this order in Tandom's catalog
Legally operative description of covered merchandise from the Federal Register
A-570-049 is a U.S. antidumping duty (AD) order on ammonium sulfate from China, issued by the U.S. Department of Commerce. It is part of the trade-remedy regime that levies cash deposits at entry on imports found to be sold below fair value (AD) or to benefit from foreign government subsidies (CVD).
The country-wide cash deposit rate for A-570-049 is 493.46%. This rate applies to importers of non-listed manufacturers/exporters from China. Individual exporters and producers may have lower (or higher) case-specific rates from Commerce administrative reviews — see the manufacturer rates linked from this page where available.
A-570-049 took effect on October 6, 2016 and is currently in active status — cash deposits apply at entry on every shipment in scope.
Two factors determine scope: (1) the product's HTS code(s) and physical characteristics — covered codes are listed on this page (1 flagged); and (2) the product's country of origin — this order applies to imports from China. The order's scope text — also on this page — is the legally binding description. When borderline cases arise, importers can request a formal scope ruling from Commerce. Tandom's lookup tool matches your HTS + origin against every active order in seconds.
A-570-049 flags 1 HTS code in Tandom's catalog. The full list is shown on this page. HTS coverage alone does not guarantee scope — physical-characteristic exclusions in the scope text may carve out specific products.
The official Federal Register citation for A-570-049 is 2017-04753. The link is on this page; clicking it opens the canonical FR document on federalregister.gov, which carries the legally operative text — scope, rates, exclusions, and effective dates.
A-570-049 has a companion case at C-570-050. AD orders frequently run alongside a CVD order on the same product/country (or vice versa). Both deposits stack on top of base duties — importers pay the full sum of both rates at entry where both orders apply.
Tandom guides relevant to this AD/CVD case
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
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Cash deposit cascade, separate rates, all-others, and PRC-wide rates. Worked example on case A-570-910 (galvanized welded steel pipe from China) with three exporter-specific rates.
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Scope text is authoritative; the HTS list is illustrative. Read scope, find past rulings, and file a 19 CFR 351.225 inquiry. Worked example on case A-570-106 (wooden cabinets from China).
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How to subscribe to CBP Cargo Systems Messaging Service and triage the messages that change broker filing behavior, without losing the ones that matter.
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Set up alerts when a CBP CSMS message changes a duty rate on an HTS code you depend on. Built for brokers, forwarders, and importer compliance teams.
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A practical workflow for checking antidumping and countervailing duty exposure on a US entry. For brokers and ops teams who need the answer before filing.
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