Kingspan, the Irish building materials manufacturer whose insulation products were installed in Grenfell Tower, has been fined €40 million after a four-year investigation by the European Union. The inquiry concluded that the company engaged in sustained dishonesty by withholding or distorting information related to the fire safety performance of its insulation materials.

The Grenfell Tower blaze, which occurred in June 2017 in London, resulted in 72 deaths and prompted extensive scrutiny of building regulations and fire safety standards in high-rise buildings. Kingspan’s products, which were found to have contributed to the rapid spread of the fire, became a focal point in the investigation.

The EU ruling described Kingspan’s conduct during the inquiry as “deeply entrenched and persistent dishonesty,” highlighting the company’s failure to provide truthful and complete information. This behavior was met with strong criticism from officials overseeing the post-fire investigations, who cited the company’s actions as a serious breach of trust.

Kingspan has faced ongoing legal and regulatory challenges since the fire, as authorities and affected families sought accountability for the tragedy. The €40 million fine represents one of the most significant penalties related to the Grenfell Tower fire.

The investigation and subsequent penalty emphasize concerns over transparency and corporate responsibility in the construction industry, particularly regarding products critical to fire safety. Kingspan has not publicly detailed its response to the EU’s decision at this time.