| Tuesday 9 February | | Results for year 1998 announced |
| |
| Friday 5 March | | Annual report posted to shareholders |
| |
| Monday 15 March | | Ordinary shares go ex-dividend |
| |
| Wednesday 17 March | | ADSs go ex-dividend |
| |
| Tuesday 20 April | | First quarter trading statement issued.
Annual general meeting at One Whitehall Place, Westminster London SW1A 2HD |
| |
| Monday 26 April | | Final dividend for 1998 payable to ordinary shareholders on the register as at 19 March 1999 |
| |
| Friday 30 April | | Final dividend for 1998 payable to ADS holders on the register as at 19 March 1999 |
| |
| Tuesday 20 July | | Results for the first six months of 1999 announced |
| |
| Monday 2 August | | Ordinary shares go ex-dividend |
| |
| Wednesday 4 August | | ADSs go ex-dividend |
| |
| Tuesday 7 September | | Interim dividend for 1999 payable to ordinary shareholders on the register as at 6 August 1999 |
| |
| Monday 13 September | | Interim dividend payable to ADS holders on the register as at 6 August 1999 |
| |
| Thursday 21 October | | Third quarter trading statement issued |
