WELSHPOOL-BASED engineering company RCR Tomlinson Ltd has announced the appointment of Roderick Brown as chairman following the retirement of Raymond Lynch. Mr Brown, has been a non-executive director of RCR since October 2005 and has more than 18 years’ experience as a company director. Mr Brown was until recently a non-executive director of Malaga-based Kresta Holdings Ltd and remains chairman of unlisted Osborne Park company Immersive Technologies Pty Ltd.