| 29/05/20 | 07:00:07 | 29 May 2020 | | Filing of Patents | RNS |
| 27/05/20 | 07:00:07 | 27 May 2020 | | Sale of DTU Interest and Kansas Nitrogen Assets | RNS |
| 15/05/20 | 07:00:04 | 15 May 2020 | | Trading Update | RNS |
| 11/05/20 | 15:36:09 | 11 May 2020 | | Holding(s) in Company | RNS |
| 06/05/20 | 14:34:33 | 6 May 2020 | | Holding(s) in Company | RNS |
| 29/04/20 | 07:00:05 | 29 Apr 2020 | | Board and Strategy Changes, and Trading Update | RNS |
| 03/04/20 | 08:00:05 | 3 Apr 2020 | | Issue of Equity | RNS |
| 01/04/20 | 08:00:06 | 1 Apr 2020 | | COVID-19 Update | RNS |
| 26/03/20 | 11:05:35 | 26 Mar 2020 | | Second Price Monitoring Extn | RNS |
| 26/03/20 | 11:00:29 | 26 Mar 2020 | | Price Monitoring Extension | RNS |
| 26/03/20 | 07:00:03 | 26 Mar 2020 | | Issue of Equity | RNS |
| 20/03/20 | 07:00:06 | 20 Mar 2020 | | COVID-19 Update | RNS |
| 05/03/20 | 07:00:04 | 5 Mar 2020 | | Operational update | RNS |
| 12/02/20 | 07:00:04 | 12 Feb 2020 | | Subscription to raise £0.39 million | RNS |
| 05/02/20 | 07:00:07 | 5 Feb 2020 | | Trading Update | RNS |
| 23/12/19 | 07:00:10 | 23 Dec 2019 | | Interim Results | RNS |
| 16/12/19 | 07:00:11 | 16 Dec 2019 | | Settlement of Diversion Debt & Notice of Results | RNS |
| 28/11/19 | 07:00:06 | 28 Nov 2019 | | Result of General Meeting | RNS |
| 25/11/19 | 07:00:08 | 25 Nov 2019 | | Trading Update | RNS |
| 13/11/19 | 14:06:03 | 13 Nov 2019 | | Second Price Monitoring Extn | RNS |
| 13/11/19 | 14:00:47 | 13 Nov 2019 | | Price Monitoring Extension | RNS |
| 11/11/19 | 07:00:09 | 11 Nov 2019 | | Listing on the OTC | RNS |
| 08/11/19 | 09:01:38 | 8 Nov 2019 | | Issue of Equity | RNS |
| 07/11/19 | 07:00:14 | 7 Nov 2019 | | Notice of General Meeting | RNS |
| 01/11/19 | 14:05:59 | 1 Nov 2019 | | Second Price Monitoring Extn | RNS |
| 01/11/19 | 14:00:35 | 1 Nov 2019 | | Price Monitoring Extension | RNS |
| 29/10/19 | 16:42:55 | 29 Oct 2019 | | Second Price Monitoring Extn | RNS |
| 29/10/19 | 16:35:46 | 29 Oct 2019 | | Price Monitoring Extension | RNS |
| 21/10/19 | 08:00:06 | 21 Oct 2019 | | Issue of Shares | RNS |
| 18/10/19 | 12:05:48 | 18 Oct 2019 | | Second Price Monitoring Extn | RNS |
| 18/10/19 | 12:00:16 | 18 Oct 2019 | | Price Monitoring Extension | RNS |
| 08/10/19 | 08:00:09 | 8 Oct 2019 | | Adoption of new share option scheme | RNS |
| 04/10/19 | 08:00:04 | 4 Oct 2019 | | Trading Update | RNS |
| 17/09/19 | 08:00:20 | 17 Sept 2019 | | Directorate Change | RNS |
| 12/09/19 | 13:30:02 | 12 Sept 2019 | | Director/PDMR Shareholding | RNS |
