9902.05.35 - Phenylphosphinic acid (CAS No. 1779-48-2) (provided for in subheading 2931.90.60)

HTS Code 9902.05.35 specifically classifies Phenylphosphinic acid (CAS No. 1779-48-2). This category falls under Chapter 99, which pertains to temporary legislation, modifications proclaimed under trade agreements, and additional import restrictions. The classification of this specific chemical compound is provided for under subheading 2931.90.60, indicating that while its primary classification is within Chapter 29 (Organic Chemicals), it is subject to additional, temporary trade provisions.

This particular HTS code distinguishes itself from its sibling categories within Chapter 99 by its specific focus on a single chemical substance, Phenylphosphinic acid. While other codes within Chapter 99 might cover broader categories of goods affected by temporary legislation or trade agreements, 9902.05.35 is narrowly tailored. Its purpose is to control or monitor the import of this specific organic chemical, likely due to specific trade policies, quantitative restrictions, or other temporary import regulations that are not generally applicable to the vast array of goods classified under the standard HTS chapters.

As this is a leaf node within the HTS database, there are no further subcategories for Phenylphosphinic acid under this specific code. Therefore, classification at this level is definitive, meaning any import of Phenylphosphinic acid must adhere to the conditions and duties stipulated by HTS Code 9902.05.35 in addition to its primary classification under Chapter 29. This ensures that specific trade policy measures related to this particular chemical are accurately applied during the import process.