ITC Investigation 731-TA-1138 is a U.S. International Trade Commission antidumping (AD) proceeding on 1-Hydroxyethylidene-1, 1-diphosphonic acid and Aminotrimethylenephosphonic acid from the People's Republic of China and Republic of India, Inv. Nos. 731-TA-1138-1139(Preliminary). It's in the preliminary phase and currently in withdrawn status. No AD/CVD order has been issued from this investigation yet — the case will appear here once Commerce publishes a final determination.
Phase, parties, documents, and full text from USITC IDS
1-Hydroxyethylidene-1, 1-diphosphonic acid and Aminotrimethylenephosphonic acid from the People's Republic of China and Republic of India, Inv. Nos. 731-TA-1138-1139(Preliminary)
Pending ITC investigation (preliminary/withdrawn) on "1-Hydroxyethylidene-1, 1-diphosphonic acid and Aminotrimethylenephosphonic acid".
Full text (3,778 chars)
=== FR: Aminotrimethylenephosphonic Acid (ATMP) and 1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP) From China and India (2008-01-29) === Federal Register :: Request Access { "imports": { "application": "/assets/application-cc464116.js", "@hotwired/turbo-rails": "/assets/turbo.min-86bf8853.js", "@hotwired/stimulus": "/assets/stimulus.min-7ea3d58b.js", "@hotwired/stimulus-loading": "/assets/stimulus-loading-25917588.js", "controllers/application": "/assets/controllers/application-e5a449db.js", "controllers/site_feedback_controller": "/assets/controllers/site_feedback_controller-a99fc93f.js", "controllers/unblock_controller": "/assets/controllers/unblock_controller-9520f896.js" } } import "application" Request Access Due to aggressive automated scraping of FederalRegister.gov and eCFR.gov, programmatic access to these sites is limited to access to our extensive developer APIs. Please visit FederalRegister.gov API documentation or eCFR.gov API documentation to learn more about how to access the API. Your request has been flagged as potentially automated. If you are human user receiving this message, please complete the CAPTCHA (bot test) below and click "Request Access". You may occassionally be asked to complete the CAPTCHA again, this is normal and part of our security measures. unblock#handleSubmit"> Request Access An official website of the United States government. If you experiencing issues with the CAPTCHA or want to request a wider IP range, you can use the "Site Help" button found in the lower, right of this page to make a request. × IP Access Help This contact form is only for IP Access help. Please do not provide confidential information or personal data. * Your Name * Email * How can we help you? Upload Attachment * I am requesting technical help. site-feedback#openModal" aria-label="Open site help form"> Site Help ──────────────────────────────────────────────────────────── === FR: Aminotrimethylenephosphonic Acid (ATMP) and 1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP) From China and India (2008-01-08) === Federal Register :: Request Access { "imports": { "application": "/assets/application-cc464116.js", "@hotwired/turbo-rails": "/assets/turbo.min-86bf8853.js", "@hotwired/stimulus": "/assets/stimulus.min-7ea3d58b.js", "@hotwired/stimulus-loading": "/assets/stimulus-loading-25917588.js", "controllers/application": "/assets/controllers/application-e5a449db.js", "controllers/site_feedback_controller": "/assets/controllers/site_feedback_controller-a99fc93f.js", "controllers/unblock_controller": "/assets/controllers/unblock_controller-9520f896.js" } } import "application" Request Access Due to aggressive automated scraping of FederalRegister.gov and eCFR.gov, programmatic access to these sites is limited to access to our extensive developer APIs. Please visit FederalRegister.gov API documentation or eCFR.gov API documentation to learn more about how to access the API. Your request has been flagged as potentially automated. If you are human user receiving this message, please complete the CAPTCHA (bot test) below and click "Request Access". You may occassionally be asked to complete the CAPTCHA again, this is normal and part of our security measures. unblock#handleSubmit"> Request Access An official website of the United States government. If you experiencing issues with the CAPTCHA or want to request a wider IP range, you can use the "Site Help" button found in the lower, right of this page to make a request. × IP Access Help This contact form is only for IP Access help. Please do not provide confidential information or personal data. * Your Name * Email * How can we help you? Upload Attachment * I am requesting technical help. site-feedback#openModal" aria-label="Open site help form"> Site Help
Investigation 731-TA-1138 is a U.S. International Trade Commission antidumping (AD) proceeding on 1-Hydroxyethylidene-1, 1-diphosphonic acid and Aminotrimethylenephosphonic acid from the People's Republic of China and Republic of India, Inv. Nos. 731-TA-1138-1139(Preliminary). The ITC determines whether U.S. industry is materially injured (or threatened) by imports under investigation; Commerce determines whether dumping or subsidization is occurring. Both findings are required for an AD/CVD order to be issued.
731-TA-1138 is in the preliminary phase, with status withdrawn. Preliminary phase — the ITC's initial 45-day determination on whether there's a reasonable indication of injury. A negative preliminary terminates the investigation; an affirmative one moves it forward.
Not yet. 731-TA-1138 has not produced an AD/CVD order in Tandom's catalog. If both Commerce and the ITC issue affirmative final determinations, an order would issue and link to this investigation. Until then, no cash deposits apply.
Tandom guides relevant to AD/CVD investigations
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.
Open resource
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).
Open resource
The USITC publishes investigation determinations and milestones on its Investigations Data Service (IDS) at ids.usitc.gov. Tandom's catalog re-syncs from IDS daily; new phases, votes, and determinations appear here within 24 hours of USITC publication.
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.
Open resource