15 Aug 2025

🧪Proposed Tax Changes on Chloro-Isobutene-Isoprene Rubber

Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Chloro-Isobutene-Isoprene Rubber (n=97.75, m=2.25)

Summary

This notice of filing announces that a petition has been filed requesting that chloro-isobutene-isoprene rubber ((C<INF>4</INF>H<INF>8</INF>)<INF>n</INF>- (C<INF>5</INF>H<INF>7.31</INF>Cl<INF>0.69</INF>)<INF>m</INF>; n=97.75, m=2.25) be added to the list of taxable substances. This notice of filing also requests comments on the petition. This notice of filing is not a determination that the list of taxable substances is modified.

Agencies

  • Treasury Department
  • Internal Revenue Service

Business Impact ?

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The content addresses the potential addition of chloro-isobutene-isoprene rubber to the list of taxable substances, creating new compliance and financial obligations for manufacturers and importers in the chemical industry. The proposed tax rate of $9.46 per ton could impact production costs and pricing strategies.

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