Malcolm Stephen McLellan

Part of Tessenderlo Group NV, Tessenderlo Holding UK Ltd. functions as an investment holding company. The company is based in Pontypridd, UK.

Part of Tessenderlo Group NV, John Davidson (Pipes) Ltd. is a civils and drainage supplier that offers high-performance quality materials. The company is based in Carlisle, UK and has 26 branches across the country for nationwide delivery. John Davidson (Pipes was acquired by DYKA UK Ltd. on April 27, 2001. The British company provides expert advice online, on the phone, or through their branch network. The company offers a range of products including access ducting, service channels, silt traps, leaf, and treatment filters. The company also provides fully integrated rainwater harvesting systems designed for water conservation in self-build projects and residential developments.