Ethylenethiourea from China
Ethylenethiourea (2-imidazolidinethione) is a cyclic thio-ureine derivative used in rubber vulcanization and as a reagent. It fits HTS 2924.21.50.00 as 'other' ureines and derivatives; salts thereof per Chapter 29 definitions.
Duty Rate — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Include rubber accelerator end-use statement to justify industrial chemical status
• Test for N-nitrosamine impurities (<10ppb) per industry standards
• White List registration if destined for EU re-export compliance