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| Sub-Chapter | 2005 | 2007 | 2008 |
| Fluorine, chlorine, bromine and iodine. | $101,695 | $802,748 | $762,987 |
| Sulphur, sublimed or precipitated | | $245 | $8,263 |
| Carbon | $172,024 | $715,917 | $1,365,145 |
| Hydrogen, rare gases and other non-metals. | $4,012,820 | $4,176,826 | $4,819,344 |
| Alkali or alkaline-earth metals; | $1,559,875 | $1,880,649 | $306,875 |
| Hydrogen chloride (hydrochloric acid); | $1,757,070 | $1,944,209 | $906,305 |
| Sulphuric acid; oleum. | $1,089,918 | $1,197,926 | $1,000,318 |
| Nitric acid; sulphonitric acids. | $125,680 | $128,358 | $28,938 |
| Diphosphorus pentaoxide; phosphoric acid; | $8,147 | $53,632 | $145,110 |
| Oxides of boron; boric acids. | $15,326 | $34,007 | $110,224 |
| Other inorganic acids and oxygen compounds | $1,418,188 | $2,180,690 | $3,481,653 |
| Halides and halide oxides of non-metals. | $16,991 | $45,192 | $200,148 |
| Ammonia, anhydrous or in aqueous solution. | $431,608 | $489,626 | $546,381 |
| Sodium hydroxide (caustic soda); | $1,788,990 | $1,363,750 | $987,782 |
| Hydroxide and peroxide of magnesium; | | | $4,305 |
| Zinc oxide; zinc peroxide. | $5,667 | $440,318 | $119,113 |
| Artificial corundum, whether or not chemically defined; | $72,689 | $70,760 | $78,205 |
| Chromium oxides and hydroxides. | $11,649 | $180,780 | $301,406 |
| Manganese oxides. | $31,125 | $227,296 | $51,538 |
| Iron oxides and hydroxides | $564,986 | $467,706 | $1,305,175 |
| Cobalt oxides and hydroxides | $20,820 | | $153,454 |
| Titanium oxides. | $1,408,599 | $473,284 | $337,551 |
| Lead oxides; red lead and orange lead. | $11,797 | $630,441 | $1,262,792 |
| Hydrazine and hydroxylamine and their inorganic salts | $170,671 | $153,163 | $983,437 |
| Fluorides; fluorosilicates and other complex fluorine salts. | $504,185 | $3,154,906 | $4,452,472 |
| Chlorides, chloride oxides and chloride hydroxides | $7,477,809 | $19,344,071 | $7,304,013 |
| Hypochlorites; commercial calcium hypochlorite | $426,387 | $835,967 | $863,698 |
| Chlorates and perchlorates; bromates and perbromates | $96,790 | $147,651 | $616,415 |
| Sulphides; polysulphides | $279,431 | $301,901 | $251,784 |
| Dithionites and sulphoxylates. | | $189,950 | $95,265 |
| Sulphites; thiosulphates. | $74,297 | $286,812 | $198,892 |
| Sulphates; alums; peroxosulphates (persulphates). | $1,551,472 | $1,592,800 | $2,578,364 |
| Nitrites; nitrates. | $151,677 | $34,673 | $1,135,691 |
| Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates | $804,513 | $829,476 | $2,956,107 |
| Carbonates; peroxocarbonates (percarbonates) | $2,168,500 | $2,636,658 | $4,568,771 |
| Cyanides, cyanide oxides and complex cyanides. | $681 | $31,860 | $36,811 |
| Fulminates, cyanates and thiocyanates. | $2,050 | $39,136 | |
| Silicates; commercial alkali metal silicates. | $427,369 | $147,619 | $120,948 |
| Borates; peroxoborates (perborates). | $272 | | |
| Salts of oxometallic or peroxometallic acids. | $21,174 | $398,937 | $122,903 |
| Other salts of inorganic acids or peroxoacids | $312,086 | $121,098 | $88,916 |
| Colloidal precious metals | $11,267 | $163,570 | $789,005 |
| Radioactive chemical elements and radioactive isotopes | $1,741,442 | $999,882 | $842,515 |
| Isotopes other than those of heading 28.44 | | $192,412 | $207,396 |
| Compounds, inorganic or organic, of rare-earth metals | $8,564 | $14,965 | |
| Hydrogen peroxide, whether or not solidified with urea | $45,520 | $49,829 | $495,411 |
| Carbides, whether or not chemically defined. | $796,317 | $536,828 | $612,269 |
| Hydrides, nitrides, azides, silicides and borides | $26,153 | $132,003 | $21,601 |
| Other inorganic compounds | $23,032 | $107,705 | $76,420 |
| Total | $31,747,323 | $49,948,232 | $47,702,116 |
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