Read the latest magazine Industry News Lead Calder Industrial Materials Issues Statement on Lead Cartel Findings 4 November 2020 IN A STATEMENT issued today Calder Industrial Materials says they are delighted to have been exonerated of any part in the lead cartel The statement follows findings of Competition and Market Authority (CMA) published on its investigation into three rolled lead firms anti-competitive practices. The three firms – Associated Lead Mills, BLM British Lead and Calder Industrial Materials – were thought to have formed a cartel to limit supply, keep prices high, exclude competitors and share information about customers. Calder Industrial Materials denied its involvement and in June 2020, when the provisional findings of its case were first made public by the CMA, Calder reiterated its innocence. Admissions of guilt ALM and BLM both admitted taking part in the illegal cartel activities in return for reduced fines, which are £1.5 million and £8 million respectively. Martin Armour Calder Industrial Materials In Calder’s statement Martin Armour, Commercial Director says, “Integrity is the key to our clients trust and has helped our business to build a strong, loyal and valued customer base over almost 250 years. We are therefore pleased to have been fully exonerated.” Previous article CITB Chief Executive Sarah Beale to Leave Next YearNext article Consultation on Architects’ Standards of Competence for Building Safety Share article You may also like View all News Industry News +2 20 March 2026 RA Issues Revised Safety Guidance on Rooflight Covers Awards and Events +3 20 March 2026 The Great British Slate Off Returns for 2026 Green Roofs +3 20 March 2026 Swansea Joins Global Network of Biophilic Cities Featured Solutions +3 19 March 2026 Flush Fitting Rooflights by Clement Sign Up to Roofing Today Stay up to date with all of the latest news from Roofing Today by signing up to our weekly Bulletins… Sign Up Today Get in Touch Check out the latest issue 123 March-April 2026 View Now Past Issues Get in Touch