Specialist Energy Group was formed when engineer Southbank UK reversed into Nviro Cleantech. The offer was 100 Nviro shares – after a 10-for-one consolidation - for every 7,849 Southbank shares – valuing Southbank at £7.27m. The group also raised £4m via a placing at 76p a share. Nviro Cleantech raised £7.5m at 63p – 630p post-consolidation - a share when it joined Aim on 6 August 2007. The plan was to develop clean technologies. The two technologies that progressed furthest are Vertus and Microrelease. Vertus developed a technology that can be used to clean up coal. The Vertus technology can also be used for pre-treating rice husks and other potential biomass fuels. Microrelease has developed a way of recycling MDF board using microwave processing. The MDF could come from demolition or furniture manufacturers, which have a lot of waste in the production process. The reclaimed wood fibre can be used for a recycled MDF, insulation, road surfacing or cement reinforcement. Southbank joined CISX in March 2006 after it acquired Hayward Tyler. Luton-based Howard Tyler was established in 1815 and supplies fluid filled electric motors and pumps for the power generation and oil and gas markets.