; (B) by striking 4.0% and inserting 5.6% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (50) Pyroxasulfone technical Heading 9902.07.53 is amended— (A) by amending the article description to read as follows: 3-({[5-(Difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H- pyrazol-4-yl]methyl}sulfonyl)-5,5-dimethyl-4,5- dihydro-1,2-oxazole (Pyroxasulfone) (CAS No. 447399–55–5) (provided for in subheading 2934.99.90) ; (B) by striking 3.5% and inserting 6.3% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (51) Triasulfuron Heading 9902.07.57 is amended— (A) by amending the article description to read as follows: 2-(2-Chloroethoxy)-N-[(4-methoxy-6-methyl-1,3,5-triazin-2- yl)carbamoyl]benzenesulfonamide (Triasulfuron) (CAS No. 82097–50–5) (provided for in subheading 2935.90.75) ; (B) by striking 0.4% and inserting Free ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (52) Trifloxysulfuron Heading 9902.07.58 is amended— (A) by amending the article description to read as follows: Sodium 4,6-dimethoxy-2-[({[3-(2,2,2-trifluoro- ethoxy)pyridin-2-yl]sulfonyl}carbamoyl)imino]- 2H-pyrimidin-1-ide (Trifloxysulfuron-sodium) (CAS No. 199119–58–9) (provided for in subheading 2935.90.75) ; (B) by striking 4.6% and inserting 4.9% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (53) Copper phthalocyanine blue crude Heading 9902.08.59 is amended— (A) by amending the article description to read as follows: Copper phthalocyanine ((Phthalocyanato(2-))-copper), not ready for use as pigment (PCN Blue Crude) (CAS No. 147–14–8) (provided for in subheading 3204.17.20) ; (B) by striking 3.3% and inserting 3% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (54) Spirotetramat formulations Heading 9902.09.24 is amended— (A) by amending the article description to read as follows: Product mixtures containing (5s, 8s)-3-(2,5-dimethylphenyl)-8-methoxy-2-oxo-1-azaspiro [4.5] dec-3-en-4-yl ethyl carbonate (Spirotetramat) (CAS No. 203313–25–1) (provided for in subheading 3808.91.25)