The inventory at the end of 2021 was 5.64781 tons.
The total generation of hazardous waste in 2022 is 27.53894 tons, including 1.0204 tons of waste acid (HW34), 10.01115 tons of waste organic solvent (HW06), 6.5358 tons of waste developer (HW16), and 9.97159 tons of other waste (HW49). 33.18512 tons were outsourced, and the storage capacity was 0.00163 tons.