Offshore Drilling Riser Joint from China
A marine riser joint connects sections of the riser string used in offshore drilling platforms to convey drilling fluid and guide tools between the rig and subsea wellhead (HTS 8431.43.40.00). These high-pressure, corrosion-resistant pipes are engineered for deepwater environments on platforms using 8430.41/8430.49 boring machinery. Essential for maintaining well control during offshore operations.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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]
Import Tips
• Include riser analysis reports proving pressure ratings for 10,000+ psi typical in deepwater; ensure material certs for sour service (H2S resistance); declare exact water depth rating to avoid reclassification