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
44%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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