--- title: "2920 – Esters of other inorganic acids of…: Canada tariff & duty rates" description: "Every Canadian tariff classification under HS 2920: Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts…" canonical: "https://www.adhocs.ca/hs-codes/2920" --- # 2920 Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives. Up: [HS codes](https://www.adhocs.ca/hs-codes) › [Chapter 29](https://www.adhocs.ca/hs-codes/29) 9 subheadings. Each subheading links to its page, which lists its 10-digit codes, or to its only 10-digit code. ## Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - [2920.11.00.00](https://www.adhocs.ca/hs-codes/2920.11.00.00) Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion) - [2920.19.00.00](https://www.adhocs.ca/hs-codes/2920.19.00.00) Other ## Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - [2920.21.00.00](https://www.adhocs.ca/hs-codes/2920.21.00.00) Dimethyl phosphite - [2920.22.00.00](https://www.adhocs.ca/hs-codes/2920.22.00.00) Diethyl phosphite - [2920.23.00.00](https://www.adhocs.ca/hs-codes/2920.23.00.00) Trimethyl phosphite - [2920.24.00.00](https://www.adhocs.ca/hs-codes/2920.24.00.00) Triethyl phosphite - [2920.29.00.00](https://www.adhocs.ca/hs-codes/2920.29.00.00) Other - [2920.30.00.00](https://www.adhocs.ca/hs-codes/2920.30.00.00) Endosulfan (ISO) - [2920.90.00.00](https://www.adhocs.ca/hs-codes/2920.90.00.00) Other ## Other headings in this chapter - Previous: [2919](https://www.adhocs.ca/hs-codes/2919) Phosphoric esters and their salts, including lactophosphates; their halogenated, sulphonated, nitrated or nitrosated derivatives. - Next: [2921](https://www.adhocs.ca/hs-codes/2921) Amine-function compounds. [Source: CBSA Customs Tariff](https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/menu-eng.html).