| 9th Mar 2023 3:11 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 9th Feb 2023 7:00 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 7th Feb 2023 7:00 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 3rd Feb 2023 7:15 am | RNS | Trading Update | 
                                                                            
                                            | 3rd Feb 2023 7:15 am | RNS | Litigation Settlement Update | 
                                                                            
                                            | 18th Jan 2023 11:35 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 16th Jan 2023 12:45 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 11th Jan 2023 2:40 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 10th Jan 2023 2:37 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 9th Jan 2023 7:00 am | RNS | Litigation Settlement Update | 
                                                                            
                                            | 6th Jan 2023 7:00 am | RNS | Litigation Outcome – Settlement Agreed | 
                                                                            
                                            | 4th Jan 2023 3:31 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 20th Dec 2022 3:51 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 20th Dec 2022 2:59 pm | RNS | Result of AGM | 
                                                                            
                                            | 20th Dec 2022 7:00 am | RNS | AGM Statement | 
                                                                            
                                            | 13th Dec 2022 7:00 am | RNS | Block listing Six-monthly Return | 
                                                                            
                                            | 9th Dec 2022 7:00 am | RNS | Litigation Update - Firm Trial Date | 
                                                                            
                                            | 14th Nov 2022 10:46 am | RNS | 2022 Annual Report and Notice of AGM | 
                                                                            
                                            | 7th Nov 2022 4:13 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 27th Oct 2022 5:19 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 26th Oct 2022 2:31 pm | RNS | Litigation Update – Funded Law Suit Filed in China | 
                                                                            
                                            | 20th Oct 2022 7:00 am | RNS | Preliminary Results | 
                                                                            
                                            | 14th Oct 2022 12:59 pm | RNS | Presentation via Investor Meet Company | 
                                                                            
                                            | 14th Oct 2022 10:41 am | RNS | Notice of Results | 
                                                                            
                                            | 28th Sep 2022 7:00 am | RNS | Litigation Update – Further Revised Trial Date | 
                                                                            
                                            | 12th Sep 2022 8:25 am | RNS | Trading Update & Directorate Change | 
                                                                            
                                            | 7th Sep 2022 3:47 pm | RNS | Litigation Update – Revised Trial Date | 
                                                                            
                                            | 1st Sep 2022 10:22 am | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 31st Aug 2022 7:00 am | RNS | Two Grant Funding Awards | 
                                                                            
                                            | 30th Aug 2022 3:33 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 30th Aug 2022 3:28 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 25th Aug 2022 1:36 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 23rd Aug 2022 2:22 pm | RNS | Funded Law Suit Filed in Germany | 
                                                                            
                                            | 19th Aug 2022 8:21 am | RNS | Litigation Update – Pre-Trial Conference | 
                                                                            
                                            | 18th Aug 2022 4:10 pm | RNS | Director/PDMR Shareholding | 
                                                                            
                                            | 16th Aug 2022 7:00 am | RNS | Trading Update | 
                                                                            
                                            | 28th Jul 2022 10:42 am | RNS | Holding(s) in Company | 
                                                                            
                                            | 13th Jul 2022 2:03 pm | RNS | Replacement - Director/PDMR Shareholding | 
                                                                            
                                            | 13th Jul 2022 12:00 pm | RNS | Holding(s) in Company | 
                                                                            
                                            | 13th Jul 2022 12:00 pm | RNS | Director/PDMR Shareholding |