BOP Stack Assembly for Offshore Platforms from China
A blowout preventer (BOP) stack assembly is a critical safety component designed specifically for offshore oil and natural gas drilling platforms under HTS 8431.43.40.00. It consists of multiple ram and annular preventers mounted on a manifold to seal the wellbore during drilling operations on floating or fixed platforms. Classified here as a part solely for boring machinery of subheading 8430.41 or 8430.49 used offshore.
Duty Rate — China → United States
50%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Verify certification from API Spec 16A for BOP components to meet US safety standards; provide detailed engineering drawings showing platform-specific design; avoid misclassification by confirming exclusive use with offshore 8430.41/8430.49 rigs