; (B) by striking 3.1% and inserting 2.7% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (45) Fluthiacetmethyl Heading 9902.07.29 is amended— (A) by amending the article description to read as follows: Methyl [[2-chloro-4-fluoro-5[(tetrahydro-3-oxo-1H,3H-[1,3,4]thi- adiazolo[3,4-a]pyridazin-1- ylidene)amino]phenyl]thio]acetate (Fluthiacet-methyl technical) (CAS No. 117337–19–6) (provided for in subheading 2934.99.15) ; (B) by striking Free and inserting 3% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (46) Flumioxazin Heading 9902.07.30 is amended— (A) by amending the article description to read as follows: 2-[7-Fluoro-3-oxo-4-(2-propyn-1-yl)-3,4-dihydro-2H- 1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H- isoindole-1,3(2H)-dione (Flumioxazin) (CAS No. 103361–09–7) (provided for in subheading 2934.99.15) ; (B) by striking 6.1% and inserting 5.6% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (47) Buprofezin Heading 9902.07.31 is amended— (A) by amending the article description to read as follows: (2Z)-3-Isopropyl-2-[(2-methyl-2-propanyl)imino]-5-phenyl- 1,3,5-thiadiazinan-4-one (Buprofezin) (CAS No. 69327–76–0 or 953030–84–7) (provided for in subheading 2934.99.16) ; (B) by striking 1.4% and inserting Free ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (48) Sarolaner Heading 9902.07.38 is amended— (A) by amending the article description to read as follows: 1-{5′-[(5S)-5-(3,5-Dichloro-4-fluorophenyl)-4,5-dihydro-5- (trifluoromethyl)-1,2-oxazol-3-yl]-1H,3′H-spiro[azetidine-3,1′- [2]benzofuran]-1-yl}-2-mesylethanone (Sarolaner) (CAS No. 1398609–39–6) (provided for in subheading 2934.99.30) ; (B) by striking Free and inserting 4.5% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (49) Isoxadifen-ethyl Heading 9902.07.43 is amended— (A) by amending the article description to read as follows: Ethyl 5,5-diphenyl-4H-1,2-oxazole-3-carboxylate (Isoxadifen-ethyl) (CAS No. 163520–33–0) (provided for in subheading 2934.99.39) ; (B) by striking 4.0% and inserting 5.6%