| ADDERALL XR® | An extended release product used in the treatment of Attention Deficit Hyperactivity Disorder |
| ADR | American Depositary Receipt |
| AGM | Annual general meeting |
| Alfa Aesar | Brand name of Johnson Matthey's Research Chemicals business |
| AMOG | Ammonia, Methanol, Oil and Gas |
| API | Active pharmaceutical ingredient |
| CEC | Chief Executive's Committee |
| Cefic | European Chemical Industry Council |
| CGU | Cash-generating unit |
| CIA | Chemical Industries Association |
| CO2 | Carbon dioxide |
| Codeine phosphate | Analgesic of moderate potency and antitussive |
| CSR | Corporate Social Responsibility |
| CWA | Clean Water Act (US) |
| DPF | Diesel particulate filter |
| DPT | Davy Process Technology |
| DMFC | Direct methanol fuel cell |
| DRIP | Dividend Reinvestment Plan |
| EBITDA | Earnings before interest, tax, depreciation and amortisation |
| ECT | Emission Control Technologies |
| EHS | Environment, health and safety |
| EIB | European Investment Bank |
| EPS | Earnings per share |
| ESOT | Employee Share Ownership Trust |
| EU | European Union |
| Fuel Cell | Technology which converts hydrogen or other fuels (methanol, natural gas) into clean electricity |
| FURBS | Funded Unapproved Retirement Benefit Scheme |
| Galantamine | An alkaloid used in the treatment of mild to moderate Alzheimer's disease |
| Gearing | Net debt / equity |
| GHS | Globally Harmonised System of Classification and Labelling of Chemicals |
| GWP | Global warming potential |
| HDD | Heavy duty diesel |
| IAS | International Accounting Standard |
| ICE | Internal combustion engine |
| IFRIC | International Financial Reporting Interpretations Committee |
| IFRS | International Financial Reporting Standards |
| IGCC | Integrated gasification combined cycle |
| ISO 14000 | Internationally recognised series of standards which specify the requirements for an environmental management system |
| ISO 9000 | Internationally recognised series of standards which specify the requirements for a quality management system |
| JMEPS | Johnson Matthey Employees Pension Scheme |
| JMI | Johnson Matthey Inc. |
| JMTC | Johnson Matthey Technology Centre |
| KPI | Key performance indicator |
| LBG | London Benchmarking Group |
| LTIP | Long term incentive plan |
| MDRC | Management Development and Remuneration Committee |
| Methylphenidate | Synthetic controlled drug used in the treatment of narcolepsy and Attention Deficit Hyperactivity Disorder |
| NETL | National Energy Technology Laboratory (US) |
| NOx | Nitrogen oxides |
| Oxaliplatin | A platinum anticancer drug |
| Oxycodone | An opiate used to relieve medium to severe pain |
| PBT | Underlying profit before tax |
| Pgm | Platinum group metal |
| Prostaglandin | Synthetic analogues of hormone-like substances |
| R&D | Research and development |
| Razadyne® | Drug used to treat the symptoms of Alzheimer's disease, active ingredient galantamine |
| REACH | Registration, Evaluation and Authorisation of Chemicals. EU chemical control legislation which came into force in June 2007 |
| ROIC | Return on invested capital |
| ROS | Return on sales |
| RPI | Retail price index |
| SEC | Stationary emissions control |
| SCR | Selective catalytic reduction |
| SIC | Standing Interpretations Committee |
| SIP | Share incentive plan |
| SO2 | Sulphur dioxide |
| Syngas | A mixture of hydrogen and carbon oxides |
| TSR | Total shareholder return |
| USW | United Steelworkers union |
