Division 43Production of fused zirconia

### Division 43—Production of fused zirconia 343 (1) The production of fused zirconia is the physical and chemical transformation of zircon (ZrSiO4) by: (a) the removal of silica (silicon dioxide (SiO2)) using a reductant such as carbon; and (b) heating the zircon to its fusion point; to produce fused zirconia (zirconium dioxide (ZrO2)) that has a concentration of zirconium dioxide (ZrO2) of at least 96%. (2) The production of fused zirconia is specified as an emissions‑intensive trade‑exposed activity. (3) The production of fused zirconia is a highly emissions‑intensive activity. (4) The basis for the issue of free carbon units for the production of fused zirconia is by a tonne of fused zirconia (zirconium dioxide (ZrO2)) that: (a) has a concentration of zirconium dioxide (ZrO2) of at least 96%; and (b) is produced by carrying on the emissions‑intensive trade‑exposed activity; and (c) is of saleable quality. > Note: Saleable quality is explained in Part 2.