9902.01.98 Lithium p-styrenesulfonate (CAS No. 4551–88–6) (provided for in subheading 2904.10.32) Free No change No change On or before 12/31/2020 . 100. Spinomar NaSS Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.01.99 Sodium 4-vinylbenzenesulfonate (CAS No. 2695–37–6) (provided for in subheading 2904.10.37) Free No change No change On or before 12/31/2020 . 101. Para toluene sulfonic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.01 p-Toluenesulfonic acid (4-methylbenzenesulfonic acid hydrate (1:1)) (CAS No. 6192–52–5) (provided for in subheading 2904.10.37) Free No change No change On or before 12/31/2020 . 102. Methanesulfonic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.02 Methanesulfonic acid (CAS No. 75–75–2) (provided for in subheading 2904.10.50) 1.7% No change No change On or before 12/31/2020 . 103. Methanesulfonyl chloride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.03 Methanesulfonyl chloride (CAS No. 124–63–0) (provided for in subheading 2904.10.50) Free No change No change On or before 12/31/2020 . 104. 4-Chloro3,5dinitrobenzotrifluoride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.04 4-Chloro-3,5-dinitro-α,α,α-trifluorotoluene (CAS No. 393–75–9) (provided for in subheading 2904.99.15) Free No change No change On or before 12/31/2020 . 105. 2-Methyl-5-nitrobenzenesulfonic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.05 2-Methyl-5-nitrobenzenesulfonic acid (CAS No. 121–03–9) (provided for in subheading 2904.99.20) Free No change No change On or before 12/31/2020 . 106. Triflic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.06 Triflic acid