(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 (trifluoromethanesulfonic acid) (CAS No.1493–13–6) (provided for in subheading 2904.99.50) Free No change No change On or before 12/31/2020 . 107. Triflic anhydride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.07 Triflic anhydride (trifluoromethanesulfonic anhydride) (CAS No. 358–23–6) (provided for in subheading 2904.99.50) Free No change No change On or before 12/31/2020 . 108. Potassium perfluoroethyl cyclohexanesulphonate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.08 Potassium 2,2,3,3,4,4,5,5,6,6-decafluoro-1-(pentafluoroethyl)cyclohexanesulfonate (CAS No. 67584–42–3) (provided for in subheading 2904.99.50) Free No change No change On or before 12/31/2020 . 109. 2-Octanol solvent Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.09 2-Octanol (CAS No. 123–96–6) (provided for in subheading 2905.16.00) Free No change No change On or before 12/31/2020 . 110. Isostearyl alcohol Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.10 16-Methyl-1-heptadecanol (Isostearyl alcohol) (CAS No. 27458–93–1) (provided for in subheading 2905.19.90) Free No change No change On or before 12/31/2020 . 111. Sodium methylate powder Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.11 Sodium methylate powder (CAS No. 124–41–4) (provided for in subheading 2905.19.90) Free No change No change On or before 12/31/2020 . 112. Magnesium tert-butoxide Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.02.12 Magnesium