HS Code	Description	Primary rate
2818101110	Sol-gel corundum (cas rn 1302-74-5) with an aluminium oxide content of 99,6 % or more by weight, having a micro crystalline structure in the form of rods with an aspect ratio of 1,3 or more, but not more than 6,0	4.00 %
2818101120	Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (cas rn 1344-28-1) and magnesium aluminate (cas rn 12068-51-8), with a content by weight (calculated as oxides) of:<br>-92 % or more of aluminium oxide, and<br>-8 % or less of magnesium oxide<br>	4.00 %
2818101130	Sintered sol-gel corundum or pre-sintered sol-gel with an aluminium oxide content of 99,6% or more by weight, having a microcrystalline structure in the form of rods with an aspect ratio of 1,3 or more, but not more than 6,0	4.00 %
2818101140	Sintered sol-gel corundum or pre-sintered sol-gel with a microcrystalline structure, consisting of aluminium oxide, with a composition by weight (as oxides) of at least 98,5% aluminium oxide, other than with an aluminium oxide content of 99,6% or more by weight, having a microcrystalline structure in the form of rods with an aspect ratio of 1,3 or more, but not more than 6,0	4.00 %
2818101191	Fused alumina where both of the following apply:<br>(i) between 5% and 35% of the product by weight is below the lowest grain size limit set out in the specification for the product and;<br>(ii) between 1% and 10% of the product by weight is above the upper grain size limit set out in the specification for the product	4.00 %
2818101199	Other	4.00 %
2818101900	With 50 % or more of the total weight having a particle size of more than 10 mm	4.00 %
2818109120	Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (cas rn 1344-28-1), magnesium aluminate (cas rn 12068-51-8) and the rare earth aluminates of yttrium, lanthanum, and neodymium, with a content by weight (calculated as oxides) of:<br>- 92 % or more, but less than 98,5 % of aluminium oxide,<br>- 2 % (± 1,5 %) of magnesium oxide,<br>- 1 % (± 0,6 %) of yttrium oxide,<br>and<br>- either 3 % (± 2,2 %) of lanthanum oxide or<br>- 2 % (± 1,2 %) of lanthanum oxide and neodymium oxide,<br>with less than 50 % of the total weight having a particle size of more than 10 mm	4.00 %
2818109130	Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (cas rn 1344-28-1) and magnesium aluminate (cas rn 12068-51-8), with a content by weight (calculated as oxides) of:<br>-92 % or more, but not more than 94 % of aluminium oxide, and<br>-8 % (± 1 %) of magnesium oxide<br>	4.00 %
2818109140	Sintered sol-gel corundum or pre-sintered sol-gel with a microcrystalline structure, consisting of aluminium oxide, with a composition by weight (as oxides) of at least 92% but less than 98.5% aluminium oxide	4.00 %
2818109191	Fused alumina with a titanium dioxide content of 1% by weight or more, where both of the following apply:<br>(i) between 5% and 35% of the product by weight is below the lowest grain size limit set out in the specification for the product and;<br>(ii) between 1% and 10% of the product by weight is above the upper grain size limit set out in the specification for the product	4.00 %
2818109199	Other	4.00 %
2818109900	With 50 % or more of the total weight having a particle size of more than 10 mm	4.00 %