The U.S. International Trade Commission (ITC) published notices on April 8, 2026, scheduling full five-year reviews for antidumping and countervailing duty orders on oil country tubular goods (OCTG) from India, South Korea, Turkey, Ukraine, and Vietnam under Investigation Nos. 701-TA-499-500 and 731-TA-1215-1223. Interested parties must file entries of appearance by May 8, 2026, with responses to the Commission's adequacy questionnaire due the same day.

Scope of the Reviews and Affected HTS Classifications

These reviews cover OCTG products—primarily drill pipe, casing, and tubing used in oil and gas extraction—originally subject to orders issued in 2014. The merchandise falls under HTS subheadings 7304.29, 7305.20, and 7306.29, with specific statistical suffixes varying by diameter, wall thickness, and end finish. The countervailing duty orders (701-TA-499-500) apply to India and Turkey, while antidumping duty orders (731-TA-1215-1223) cover all five countries.

Current duty rates under review: Antidumping margins range from 2.05% (certain South Korean producers) to 35.86% (Vietnam-wide rate). Countervailing duty rates for India range from 2.53% to 18.20%, while Turkey faces rates from 1.69% to 15.89%.

The ITC's full review process means the Commission found sufficient interest from domestic producers or determined that expedited reviews would be inadequate. This signals that the underlying duty orders will likely remain in effect through at least 2027, pending the Commission's final determination on whether revocation would lead to continuation or recurrence of material injury.

Timeline and Procedural Requirements

The Commission's scheduling notice establishes the following deadlines under 19 CFR 207.62:

Implementation alert: Systems pulling OCTG duty rates from CBP's ADD/CVD module should flag these HTS codes for potential rate changes in Q4 2026. If the ITC revokes any country-specific order, the corresponding special duty rates drop to zero—requiring immediate cache invalidation.

Technical Implications for HTS Data Systems

For API consumers tracking AD/CVD rates, these reviews create a data volatility window. The ADD/CVD case numbers (A-533-857, A-580-870, A-489-817, A-823-816, A-552-817 for antidumping; C-533-858 and C-489-818 for countervailing duties) should be monitored for Federal Register updates via the ITC's EDIS system or CBP's message sets.

Classification accuracy becomes critical during reviews. OCTG products often require careful distinction from standard line pipe (HTS 7304.19, 7305.11, 7306.19), which carries different duty treatment. A misclassification at the 8-digit level can mean the difference between a 0% MFN rate and a 35%+ combined duty burden.

Developers maintaining tariff databases should implement version tracking for AD/CVD rates separate from base HTS rates. The ITC's determination—expected in late 2026—will either continue existing rates, modify them based on new calculations from Commerce's parallel administrative review, or revoke orders entirely for specific countries.

Cross-Reference with Commerce Department Proceedings

The ITC reviews run parallel to the Department of Commerce's sunset reviews, where rate recalculations may occur. Commerce published its own initiation notice in the Federal Register on April 1, 2026 (91 FR XXXXX), covering the same OCTG orders. Any rate modifications from Commerce's final results will need synchronization with ITC's injury determination before CBP updates its AD/CVD rate tables.

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