The UK and Welsh governments have welcomed the investment into a new facility from the international manufacturer.

The announcement comes as the UK and EU hold a summit to discuss future opportunities to boost economic growth.

The landmark development will produce more than 100,000 tonnes of non-combustible rock mineral wool insulation per year and create around 140 direct jobs, with more in local supply chains.

The announcement coincides with the UK-EU Summit that took place on Monday [19 May 2025].

Secretary of state for Wales Jo Stevens said: “This £170m investment by Knauf Insulation is fantastic news for North Wales and our UK government mission to drive economic growth.”

Using UK-First Submerged Arc Furnace technology, the new factory will produce non-combustible, low embodied carbon, recyclable rock mineral wool insulation to support the need for safer, more energy efficient and sustainable buildings.

The UK and Welsh government-backed North Wales Growth Deal and the Flintshire and Wrexham Investment Zone collectively support the decision by Knauf Insulation to lo-cate a second plant in the area.

As leaders in the production of sustainable building materials, Knauf Insulation’s expansion further supports the growing advanced manufacturing cluster in North Wales.

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