Kingspan Group plc Rotten Score Breakdown

Kingspan Insulated Panels faced a U.S. National Labor Relations Board (NLRB) case arising from a union-organizing dispute involving workers at its Modesto, California facility and the International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART). SMART accused Kingspan of interfering with workers' organizing rights and engaging in coercive or retaliatory conduct connected with union activity. The case progressed beyond the initial allegation stage: on May 16, 2025, the NLRB General Counsel issued a formal Complaint and Notice of Hearing against Kingspan. NLRB – Kingspan Insulated Panels case 32-CA-331630: https://www.nlrb.gov/case/32-CA-331630 Kingspan contested the allegations and filed an answer to the complaint. The company has also publicly rejected SMART's broader accusations, saying it respects employees' freedom to decide whether they want union representation and accusing SMART of using misleading claims to pressure Kingspan into accepting a neutrality agreement. Kingspan response: https://smartuniontherealstory.kingspan.com/ The dispute was ultimately resolved without a final administrative-law-judge ruling on the merits. The NLRB docket records an informal settlement in January 2026 followed by a bilateral settlement agreement dated February 24, 2026. The settlement should therefore not be treated as a finding that every allegation against Kingspan was proven. However, the case went substantially beyond an unsupported union accusation: the NLRB investigated the charges, its General Counsel issued a formal complaint, Kingspan defended the proceedings, and the parties ultimately reached a settlement. Key facts: NLRB case involving Kingspan's Modesto workers and SMART; formal NLRB complaint issued May 16, 2025; Kingspan disputed the allegations; case concluded through a bilateral settlement on February 24, 2026; no final ALJ finding of liability. SMART – Kingspan campaign: https://www.smart-union.org/tag/kingspan/

The Grenfell Tower Inquiry's final report, published on 4 September 2024, made severe findings against Kingspan concerning the development, fire testing, certification and marketing of its Kooltherm K15 insulation for use on high-rise buildings. Following years of evidence gathering, the independent public inquiry concluded that the history of Kingspan's development and marketing of K15 for buildings over 18 metres between 2006 and 2019 was characterized by what it called “deeply entrenched and persistent dishonesty” in pursuit of commercial gain, coupled with a complete disregard for fire safety. Grenfell Tower Inquiry – Phase 2 Report, Volume 2 (official report, including Chapter 22 on Kingspan K15): https://www.grenfelltowerinquiry.org.uk/report/phase-2/volume-2.html UK Government – Complete Grenfell Tower Inquiry Phase 2 report: https://www.gov.uk/government/publications/publication-of-the-grenfell-tower-inquiry-phase-2-report The Inquiry found that Kingspan marketed and sold K15 for many years while relying heavily on fire tests performed on a different version of the product. According to the final report, the particular product subjected to the tests on which Kingspan purported to rely was no longer available and had not been sold since 2007 at the latest. The Inquiry concluded that this was not a mistake or misunderstanding but was done deliberately. It found that Kingspan did not tell the market that the fire tests it relied upon concerned a product that was no longer being sold. The relevant test and classification reports were not withdrawn until October 2020, after the Grenfell Tower Inquiry's investigations brought the issue to light. The Inquiry also examined Kingspan's claims concerning the fire classification of K15. Kingspan promotional literature from 2001 onwards described K15 as having a national Class 0 classification, with some marketing material separately describing both the complete product and its insulation core as “Class 0 fire rated.” The Inquiry concluded that some of those representations were technically unsustainable and formed part of a broader pattern in which the product's fire performance and suitability for high-rise construction were misrepresented. The final report concluded that Kingspan's marketing helped create a spurious market for polymeric insulation represented as suitable for general use on high-rise buildings, including buildings above 18 metres. The Inquiry also criticized certification bodies. It found that the British Board of Agrément (BBA) and Local Authority Building Control (LABC) failed to scrutinize Kingspan's claims rigorously enough and issued or maintained certification containing misleading information concerning K15's fire performance and suitability. However, the Inquiry did not treat those regulatory failures as an excuse for Kingspan's conduct. Its overview concluded that dishonest strategies by manufacturers including Kingspan succeeded partly because certification bodies failed to exercise sufficient independence and scrutiny. Grenfell Tower Inquiry – official summary of findings: https://www.grenfelltowerinquiry.org.uk/news/statement-publication-phase-2-report The Inquiry's broader investigation found systematic dishonesty among manufacturers, including deliberate manipulation of testing processes and calculated attempts to mislead purchasers into believing combustible products complied with statutory guidance concerning their use. Important distinction concerning Grenfell Tower: Kingspan K15 represented only a small amount of the insulation installed on Grenfell Tower. Kingspan was not responsible for specifying K15 for the refurbishment and has stated that it did not know its product had been used on the building until after the fire. The evidence should therefore not state that Kingspan caused the Grenfell Tower fire or that Kingspan was responsible for the 72 deaths. The Rotten Company evidence concerns the independently established findings regarding Kingspan's historical testing, certification and marketing practices for K15 across the wider high-rise construction market. Company response – Kingspan's Grenfell Inquiry information and statements: https://www.inquiry.kingspan.com/ Company position: Kingspan has acknowledged what it describes as wholly unacceptable historical failings in its UK insulation business and has apologized for those shortcomings. At the same time, Kingspan strongly distinguishes those historical practices from responsibility for the Grenfell disaster itself. Kingspan maintains that K15 comprised only a small proportion of the insulation used on Grenfell Tower and says the product was used without the company's knowledge. It has also emphasized changes subsequently made to its fire-safety, testing, compliance and governance practices. The Inquiry nevertheless made direct findings concerning Kingspan's historical corporate conduct rather than merely recording allegations made by victims, competitors or campaigners. Key facts: The Grenfell Tower Inquiry published its final report on 4 September 2024; the Inquiry examined Kingspan's testing and marketing of Kooltherm K15; it found Kingspan relied for years on tests involving a different version of the product; it concluded that this was done deliberately rather than through mistake or misunderstanding; Kingspan did not inform the market that the product used for important historical tests was no longer the product being sold; relevant test and classification reports remained in circulation until October 2020; the Inquiry concluded that Kingspan's development and marketing of K15 for buildings above 18 metres between 2006 and 2019 involved deeply entrenched and persistent dishonesty in pursuit of commercial gain and disregard for fire safety; and the Inquiry found that Kingspan's marketing helped create a spurious market for polymeric insulation represented as suitable for high-rise buildings. This case is particularly significant because these conclusions came from the Grenfell Tower Inquiry after a multi-year public investigation, rather than from an unresolved civil allegation. The findings concern deliberate corporate behavior involving fire-safety testing and representations made to a construction market that relied on accurate safety information when selecting materials for high-rise buildings. At the same time, corporate accountability for those practices should remain separate from responsibility for the Grenfell fire itself. Kingspan's K15 represented only a small proportion of Grenfell Tower's insulation, and the evidence does not justify attributing the fire or the resulting deaths directly to Kingspan. The appropriate misconduct finding is therefore dishonest testing, certification and marketing practices concerning a fire-safety-critical construction product, exactly as documented by the Inquiry.

On 10 April 2026, Ireland's Environmental Protection Agency (EPA) successfully prosecuted Kingspan Limited at Cavan District Court over environmental licensing violations at its operations in Kingscourt, County Cavan. Kingspan pleaded guilty to three charges, including two offences involving the production of organic chemicals without the required EPA licence and a third involving alterations and operational emission points that were not included in its existing Industrial Emissions Licence. Irish Environmental Protection Agency – Kingspan prosecution and convictions: https://www.epa.ie/our-services/compliance--enforcement/whats-happening/prosecutions-and-penalties/prosecutions-2026/epa-prosecutes-kingspan-limited-p0065-01.php The first offence concerned activity on 23 January 2025 at Kingspan's Centre of Excellence Building. The EPA said Kingspan was carrying out a licensable activity involving the production of organic chemicals, including materials such as plastic polymers, synthetic fibres and cellulose-based fibres, without an EPA licence being in place for that activity. The second charge concerned substantially the same type of unlicensed chemical-production activity on 28 March 2025. The third offence concerned Kingspan's existing Industrial Emissions Licence, register number P0065-01. The EPA found that on 2 December 2024, Kingspan failed to comply with Condition 1.2.1 of that licence because alterations or reconstruction had occurred that were likely to result in a material change or increase in the nature or quantity of emissions. Specifically, the EPA identified eight operational emission points — A2-4, A2-5, A2-6, A2-7, A2-8, A2-12, A2-15 and A2-16 — that were not included in the company's licence at the time of the site visit. The violations occurred against a broader background of EPA scrutiny of Kingspan's environmental compliance. In April 2025, the EPA identified Kingspan Building Products Limited in County Cavan as one of only three National Priority Sites in Ireland for the first quarter of 2025. The National Priority Sites list identifies licensed industrial and waste facilities with the poorest environmental compliance records. For Kingspan, the EPA identified the relevant compliance issues as emissions to air and facility management. EPA – National Priority Sites/environmental enforcement information: https://www.epa.ie/news-releases/news-releases-2025/unauthorised-discharges-and-odours-drive-enforcement-at-epa-priority-sites-in-2024-.php The EPA subsequently stated that Kingspan Limited was included on the National Priority Sites list during both Quarter 1 and Quarter 2 of 2025. The agency explains that it escalates enforcement, including taking legal action, when other measures have failed to achieve the required compliance outcome. The case ultimately resulted in criminal prosecution. On 10 April 2026, Kingspan pleaded guilty to all three environmental charges at Cavan District Court. After hearing the evidence, Judge Finnegan convicted Kingspan Limited on all three charges. The court imposed a €3,000 fine for each offence, totaling €9,000, and Kingspan also agreed to pay the EPA's costs. The monetary penalty itself was relatively modest for a multinational company of Kingspan's size. However, the evidentiary significance of the case is considerably stronger than the size of the fine might suggest: these are not unresolved environmental allegations or campaign-group claims. Kingspan pleaded guilty and was formally convicted by an Irish court. Company position: Kingspan resolved the prosecution by pleading guilty to the three charges. Because the company entered guilty pleas, this evidence does not depend on treating disputed allegations as established facts. The Rotten Company record should nevertheless remain limited to the specific licensing and emissions-related offences established in the EPA prosecution and should not infer environmental damage beyond what the regulator documented. Key facts: The environmental violations occurred between December 2024 and March 2025; the EPA found operational emission points that were not included in Kingspan's Industrial Emissions Licence; Kingspan carried out licensable organic-chemical-production activity on 23 January and 28 March 2025 without the required EPA licence; Kingspan's Cavan operation was placed on the EPA's National Priority Sites list during 2025; the EPA prosecuted Kingspan at Cavan District Court on 10 April 2026; Kingspan pleaded guilty to all three charges; the court convicted Kingspan on every charge; and the company was fined €9,000 in total, with EPA costs also agreed. This case provides independently established evidence of environmental compliance failures at Kingspan separate from the historical Grenfell/K15 case. The Grenfell evidence concerns fire-safety testing and marketing practices, whereas this case concerns recent Irish environmental licensing and emissions compliance, culminating in guilty pleas and criminal convictions in 2026.