amended by inserting in numerical sequence the following new heading: 9902.03.01 Naphthalene-1,8:4,5-tetracarboxylic dianhydride (CAS No. 81–30–1) (provided for in subheading 2917.39.70) Free No change No change On or before 12/31/2020 . 198. Pyromellitic dianhydride Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.02 Pyromellitic dianhydride (benzene-1,2:4,5-tetracarboxylic dianhydride) (CAS No. 89–32–7) (provided for in subheading 2917.39.70) Free No change No change On or before 12/31/2020 . 199. Dimethyl 5-nitroisophthalate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.03 Dimethyl 5-nitroisophthalate (CAS No. 13290–96–5) (provided for in subheading 2917.39.70) Free No change No change On or before 12/31/2020 . 200. ICL Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.04 Isophthaloyl chloride (CAS No. 99–63–8) (provided for in subheading 2917.39.70) Free No change No change On or before 12/31/2020 . 201. TCL Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.05 Terephthaloyl chloride (CAS No. 100–20–9) (provided for in subheading 2917.39.70) Free No change No change On or before 12/31/2020 . 202. Hydroxypivalic acid neopentyl glycol ester Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.06 3-Hydroxy-2,2-dimethylpropyl-3-hydroxy-2,2-dimethylpropionate (CAS No. 1115–20–4) (provided for in subheading 2918.19.90) Free No change No change On or before 12/31/2020 . 203. o-Acetylsalicylic acid (aspirin) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.07 o-Acetylsalicylic acid (Aspirin) (CAS No. 50–78–2) (provided for in subheading 2918.22.10) 1.9% No change No change On or before 12/31/2020 . 204. Methyl sal Subchapter II of chapter 99 is amended by inserting