Sub Headings of 2931
| 2931.00.05.00 | Diphenyldichlorosilane; andPhenyltrichlorosilane |
| 2931.00.10.00 | 4,4'-Diphenylbisphosphonous acid, |
| 2931.00.15.00 | Sodium tetraphenylboron |
| 2931.00.22.00 | Drugs |
| 2931.00.26.00 | Pesticides |
| 2931.00.30.00 | Products described in additional U.S. note 3 to section VI |
| 2931.00.60.00 | Other |
| 2931.00.70.00 | N,N'-Bis(trimethylsilyl)urea;3-(Hydroxymethylphosphinyl)-1-propanoic acid, 2-hydroxyethyl ester; and2-Phosphonobutane-1,2,4-tricarboxylic acid and its salts |
| 2931.00.90. | Other |