| 2804.61.00 | 00 | Hydrogen, rare gases and other non-metals. - Silicon: - Containing by weight not less than 99.99% of silicon | KGM | Free | CCCT, LDCT |
| 2804.69.00 | 00 | Hydrogen, rare gases and other non-metals. - Silicon: - Other | KGM | Free | CCCT, LDCT |
| 2931.90.00 | 30 | Other organo-inorganic compounds. - Other - Organo-silicon compounds | KGM | Free | CCCT, LDCT |
| 2811.22.00 | 20 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Silica gel | KGM | Free | CCCT, LDCT |
| 2811.22.00 | 90 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Other | KGM | Free | CCCT, LDCT |
| 2811.22.00 | | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide | KGM | Free | CCCT, LDCT |
| 2811.22.00 | 10 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Hydrated silica | KGM | Free | CCCT, LDCT |
| 2849.20.00 | 00 | Carbides, whether or not chemically defined. - Of silicon | KGM | Free | CCCT, LDCT |
| 3910.00.00 | 10 | Silicones in primary forms. - For use in the manufacture of dental prostheses, including dentures; Silicones, excluding compositions | KGM | Free | CCCT, LDCT |
| 3407.00.20 | 00 | Modelling pastes, including those put up for children's amusement; preparations known as "dental wax" or as "dental impression compounds", put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulphate). - Dental impression compounds excluding those based on silicone polymers | KGM | 6.5% | CCCT, LDCT |
| 3407.00.90 | 10 | Modelling pastes, including those put up for children's amusement; preparations known as "dental wax" or as "dental impression compounds", put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulphate). - Other - Dental impression compounds, based on silicone polymers | KGM | | |
| 3506.91.90 | 60 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg. - Other: - Adhesives based on polymers of headings 39.01 to 39.13 or on rubber
- Other - Silicones | KGM | 6.5% | CCCT, LDCT |
| 3910.00.00 | | Silicones in primary forms. | KGM | Free | CCCT, LDCT |
| 3910.00.00 | 90 | Silicones in primary forms. - Other | KGM | Free | CCCT, LDCT |
| 5503.20.00 | 14 | Synthetic staple fibres, not carded, combed or otherwise processed for spinning. - Of polyesters - Polyester staple fibres, measuring 3.3 decitex or less, of a length exceeding 31 mm but not exceeding 60 mm, for use in the manufacture of staple fibre yarn; Solely of phosphated polyesters, for use in the manufacture of curtain, drapery, blanket or upholstery fabrics; Polyesters, hollow, treated with silicone, crimped staple fibres of lengths ranging from 6.5 to 7.0 cm, measuring 14 decitex or more but not exceeding 18 decitex, for use in the manufacture of upholstered furniture; Crimped, staple, bi-component fibres of lengths ranging from 1 cm to 10 cm, measuring not more than 25 decitex, composed solely of polyester polymers, for use in the manufacture of thermally bonded nonwovens or thermally bonded wadding; Solely of polyester fibres, of lengths ranging from 1 cm to 11 cm, measuring not more than 50 decitex, for use in the manufacture of thermally or resin bonded nonwovens or wadding, needle-punched nonwovens, carded or garnetted waddings, or saturated or air-laid nonwoven waddings: - Crimped, staple, bi-component fibres of lengths ranging from 1 cm to 10 cm, measuring not more than 25 decitex, composed solely of polyester polymers, for use in the manufacture of thermally bonded nonwovens or thermally bonded wadding | KGM | Free | LDCT, GPT, |
| 5503.20.00 | 15 | Synthetic staple fibres, not carded, combed or otherwise processed for spinning. - Of polyesters - Polyester staple fibres, measuring 3.3 decitex or less, of a length exceeding 31 mm but not exceeding 60 mm, for use in the manufacture of staple fibre yarn; Solely of phosphated polyesters, for use in the manufacture of curtain, drapery, blanket or upholstery fabrics; Polyesters, hollow, treated with silicone, crimped staple fibres of lengths ranging from 6.5 to 7.0 cm, measuring 14 decitex or more but not exceeding 18 decitex, for use in the manufacture of upholstered furniture; Crimped, staple, bi-component fibres of lengths ranging from 1 cm to 10 cm, measuring not more than 25 decitex, composed solely of polyester polymers, for use in the manufacture of thermally bonded nonwovens or thermally bonded wadding; Solely of polyester fibres, of lengths ranging from 1 cm to 11 cm, measuring not more than 50 decitex, for use in the manufacture of thermally or resin bonded nonwovens or wadding, needle-punched nonwovens, carded or garnetted waddings, or saturated or air-laid nonwoven waddings: - Solely of polyester fibres, of lengths ranging from 1 cm to 11 cm, measuring not more than 50 decitex, for use in the manufacture of thermally or resin bonded nonwovens or wadding, needle-punched nonwovens, carded or garnetted waddings, or saturated or air-laid nonwoven waddings | KGM | Free | LDCT, GPT, |
| 5503.20.00 | 19 | Synthetic staple fibres, not carded, combed or otherwise processed for spinning. - Of polyesters - Polyester staple fibres, measuring 3.3 decitex or less, of a length exceeding 31 mm but not exceeding 60 mm, for use in the manufacture of staple fibre yarn; Solely of phosphated polyesters, for use in the manufacture of curtain, drapery, blanket or upholstery fabrics; Polyesters, hollow, treated with silicone, crimped staple fibres of lengths ranging from 6.5 to 7.0 cm, measuring 14 decitex or more but not exceeding 18 decitex, for use in the manufacture of upholstered furniture; Crimped, staple, bi-component fibres of lengths ranging from 1 cm to 10 cm, measuring not more than 25 decitex, composed solely of polyester polymers, for use in the manufacture of thermally bonded nonwovens or thermally bonded wadding; Solely of polyester fibres, of lengths ranging from 1 cm to 11 cm, measuring not more than 50 decitex, for use in the manufacture of thermally or resin bonded nonwovens or wadding, needle-punched nonwovens, carded or garnetted waddings, or saturated or air-laid nonwoven waddings: - Other | KGM | Free | LDCT, GPT, |
| 7019.40.10 | 00 | Glass fibres (including glass wool) and articles thereof (for example, yarn, woven fabrics). - Woven fabrics of rovings - Impregnated with a compounded and not completely cured epoxide resin, commonly known as "prepreg", meeting the IPC-4101 specification, for use in the manufacture of printed circuit boards;Glass tape, woven, electrically conductive, for use in the manufacture or refurbishing of electrical generators;Solely of glass fibres or filaments, resin impregnated, in rolls, whether or not backed with paper separators, for use in the manufacture of grinding wheels;Solely of high silica glass fibres, the fibres, exclusive of coating, containing 90% or more by weight of combined silicon, evaluated as silicon dioxide (SiO2) | KGM | Free | CCCT, LDCT |
| 7019.90.00 | 10 | Glass fibres (including glass wool) and articles thereof (for example, yarn, woven fabrics). - Other - Cordage and braided tubing, solely of high silica glass fibres, the fibres, exclusive of coating, containing 90% or more by weight of combined silicon, evaluated as silicon dioxide (SiO2); Discs of woven glass fibres or filaments, resin impregnated, whether or not backed with paper separators, for use in the manufacture of grinding wheels | - | Free | CCCT, LDCT |
| 7202.11.00 | 10 | Ferro-alloys. - Ferro-manganese: - Containing by weight more than 2% of carbon - Containing by weight not more than 1% of silicon: - Containing by weight not more than 1% of silicon | KGM | | |
| 7202.11.00 | 20 | Ferro-alloys. - Ferro-manganese: - Containing by weight more than 2% of carbon - Containing by weight more than 1% of silicon | KGM | | |
| 7202.19.00 | 11 | Ferro-alloys. - Ferro-manganese: - Other - Containing by weight not more than 1% of silicon: - Containing by weight not more than 0.75% of carbon | KGM | | |
| 7202.19.00 | 12 | Ferro-alloys. - Ferro-manganese: - Other - Containing by weight not more than 1% of silicon: - Containing by weight more than 0.75% but not more than 2% of carbon | KGM | | |
| 7202.21.00 | | Ferro-alloys. - Ferro-silicon: - Containing by weight more than 55% of silicon | KGM | Free | CCCT, LDCT |
| 7202.21.00 | 10 | Ferro-alloys. - Ferro-silicon: - Containing by weight more than 55% of silicon - Containing by weight less than 90% of silicon | KGM | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
