1. Copyright 2011 Envirox™ – SAVING FUEL THROUGH NANOMATERIALS TECHWORLD 16 th November 2011 Mike Attfield CEO, Energenics Europe Ltd

2. Copyright 2011 BUSINESS CHRONOLOGY YEAREVENT 1999Oxonica plc created as a spin out from Oxford University developments in nanomaterials, located at Begbroke Science Park 2001-02Invention of Envirox TM 2003-04Initial major bus trials in Hong Kong and UK 2004Scale up to commercial production 2005Stagecoach UK Bus adopt nationally Oxonica plc floats on AIM 2009Energenics Holdings Pte Limited acquires Oxonica Energy from Oxonica plc, renamed Energenics Europe Limited 2010Coach Canada (Stagecoach company) adopts Envirox 2011Stagecoach introduces Envirox to newly acquired London operations

3. Copyright 2011 Envirox™- Market Drivers High fuel prices Environmental pressures Greenhouse Gases (CO 2 ) reduction Reducing local air pollution - Particulates Declining oil reserves

4. Copyright 2011 Liquid additive for diesel fuel Fuel combustion catalyst Based on nanoparticulate cerium oxide Improves fuel economy by 4-10% Reduces harmful emissions up to 18% Easy to use – dosing units Available in commercial quantities What is Envirox™?

5. Copyright 2011 Catalytic Converter Envirox™ - TECHNOLOGY CONCEPT

6. Copyright 2011 Engine CeO 2 Fuel Catalytic Converter Envirox™ - TECHNOLOGY CONCEPT Oxidation Catalyst in the diesel fuel = Benefits throughout the engine

7. Copyright 2011 Envirox™ TECHNOLOGY Cerium oxide = well known oxidation catalyst 10 nanometre particles of cerium oxide High surface area Surface layer of ‘active oxygen’ due to lattice strain Dispersed in hydrocarbon solvent Dose level = 5 to 10 mg/litre (5-10 ppm)

8. Copyright 2011 SUMMARY OF BENEFITS

9. Copyright 2011 City Bus Hong Kong 2002/3 field trial, 80 vehicles 9 - 11% fuel consumption improvement Stagecoach UK 2003/4 field trial, over 1000 vehicles 5 – 7% fuel consumption improvement Stagecoach UK 2007 field trial, over 500 vehicles 4.3% fuel consumption improvement within 3 months Niederzier (Germany) 2007, municipal fleet 5 - 8 % fuel consumption improvement reported Loevenich Reisen (Germany) 2007, coach tour fleet 6% fuel consumption improvement reported Ural Mining and Metallurgical Company (Russia) 2008, 7% fuel consumption improvement reported Saves Fuel

10. Copyright 2011 Saves Fuel – City Bus, 2003

11. Copyright 2011 Saves Fuel – Stagecoach NW, 2004

12. Copyright 2011 The catalytic effect of Envirox TM reduces existing carbon deposits and prevents build up of additional carbon deposits within the engine, particularly on the cylinder head and piston crown Without Envirox™With Envirox™ Cleans Engines

13. Copyright 2011 Carbon Dioxide (CO 2 ) – Directly linked to fuel consumption, every tonne of fuel saved reduces CO 2 by approximately 3 tonnes – Minimal energy used to produce Envirox™ Particulates (PM) Up to 18% reduction observed Hydrocarbons (HC) Up to 13% reduction observed Carbon Monoxide (CO) Up to 6% reduction observed Lowers Harmful Emissions

14. Copyright 2011 Customer Scenario – Benefits to Stagecoach (2008 estimates) Net Cost Saving = £3.8 million/year Net CO 2 Reduction = 24,500 tonnes/year

15. Copyright 2011 Customer Scenario - Benefits 'Our vehicles have driven more than 700 million miles on Envirox™, and to achieve a consistent result across a diverse fleet over 3 years testifies to the robustness of the technology. We are particularly pleased with the performance of the product both in ultra low sulphur diesel and in blends containing biodiesel, which are now in widespread use across our fleet'. Adrian Havlin, Stagecoach Group Technical Engineer

16. Copyright 2011 Energenics continues to develop novel nanomaterials for a range of applications – Core competence = Nanoparticle Synthesis and Scale up Member of an EU FP7 programme aimed at delivering extended service-life and improved properties of wood products through the use of functional nanoparticles in clear coating systems. Part of the scientific community on Oxford University’s Begbroke Science Park Ongoing Research Activity

17. Copyright 2011 17 Thank You