Castle Cement’s new kiln at its Padeswood works in Flintshire Padeswood works was officially opened by the Welsh First Minister on Friday 29 September.
Rhodri Morgan joined local community leaders, business people and politicians to celebrate the new UK£64m line.
The investment is seen as a vital project for the future of the Welsh economy, the local community and the environment, putting Padeswood at the leading edge of cement production in Europe.
The new kiln replaces old plant at the works and is already cutting back drastically on greenhouse gas emissions per tonne of cement.
The kiln includes the usage of alternative fuels and the whole process is closely monitored using the latest computerised technology.
A statement by the producer says the new line reinforces Castle’s commitment to manufacturing within the UK, enables the company to provide a high reliability of supply and to produce a high quality light-coloured cement, which is in line with customer demand.