Knauf Insulation Ltd Choose year 2022 - 23 2022-23 2021-22 2020-21 2019-20 2018-19 2017-18 2016-17 2015-16 2014-15 2013-14 Locations Cwmbran, Wales7,509 Tonnes Cwmbran, Wales7,509 Tonnes JavaScript is off. Please enable to view full site. Website: n/a Destination Type: Unknown Glass 15,018t Materials received by Local Authorities in 2022/23 Local Authority Material Tonnes Carmarthenshire Glass 4,688t Blaenau Gwent Glass 1,704t Cardiff Glass 1,112t Ceredigion Glass 4.5t