| 29/12/21 | 10:34:56 | 29 Dec 2021 | | Result of General Meeting | RNS |
| 22/12/21 | 11:58:34 | 22 Dec 2021 | | Update on General Meeting | RNS |
| 20/12/21 | 14:25:10 | 20 Dec 2021 | | Holding(s) in Company | RNS |
| 17/12/21 | 10:48:17 | 17 Dec 2021 | | Standard form for notification of major holdings | RNS |
| 16/12/21 | 16:20:20 | 16 Dec 2021 | | Standard form for notification of major holdings | RNS |
| 16/12/21 | 11:19:59 | 16 Dec 2021 | | Standard form for notification of major holdings | RNS |
| 13/12/21 | 14:28:09 | 13 Dec 2021 | | Standard form for notification of major holdings | RNS |
| 10/12/21 | 12:15:18 | 10 Dec 2021 | | Posting of Shareholder Circular & Notice of GM | RNS |
| 09/12/21 | 10:30:02 | 9 Dec 2021 | | Successful Fundraise & Subscription raising £3.0M | RNS |
| 09/12/21 | 07:00:06 | 9 Dec 2021 | | Proposed fundraising and subscription | RNS |
| 15/11/21 | 09:05:57 | 15 Nov 2021 | | Second Price Monitoring Extn | RNS |
| 15/11/21 | 09:00:43 | 15 Nov 2021 | | Price Monitoring Extension | RNS |
| 01/11/21 | 07:00:13 | 1 Nov 2021 | | Award of Canadian Patent for CoalSwitch™ | RNS |
| 05/10/21 | 14:05:43 | 5 Oct 2021 | | Second Price Monitoring Extn | RNS |
| 05/10/21 | 14:00:34 | 5 Oct 2021 | | Price Monitoring Extension | RNS |
| 28/09/21 | 07:00:02 | 28 Sept 2021 | | Interim Results for 6 Months Ended 30 June 2021 | RNS |
| 16/09/21 | 07:00:05 | 16 Sept 2021 | | Update on Operations at the Ashland Facility | RNS |
| 07/09/21 | 07:01:03 | 7 Sept 2021 | | AIM Rule 17 Notice | RNS |
| 07/09/21 | 07:00:04 | 7 Sept 2021 | | Change of Advisers | RNS |
| 02/09/21 | 07:00:07 | 2 Sept 2021 | | CoalSwitchTM Pellet Analysis | RNS |
| 17/08/21 | 09:45:17 | 17 Aug 2021 | | Standard form for notification of major holdings | RNS |
| 09/08/21 | 07:00:07 | 9 Aug 2021 | | Statement on Ashland Facility | RNS |
| 30/07/21 | 13:00:08 | 30 Jul 2021 | | Holding in Company and Director Dealings | RNS |
| 08/07/21 | 17:22:45 | 8 Jul 2021 | | Result of AGM | RNS |
| 08/07/21 | 07:00:03 | 8 Jul 2021 | | Trading update & AGM statement | RNS |
| 06/07/21 | 15:00:02 | 6 Jul 2021 | | Holding(s) in Company | RNS |
| 14/06/21 | 07:00:07 | 14 Jun 2021 | | Audited Results for year ended 31 December 2020 | RNS |
| 09/06/21 | 07:00:03 | 9 Jun 2021 | | Award of Canadian Notice of Allowance for Patent | RNS |
| 08/06/21 | 16:41:15 | 8 Jun 2021 | | Second Price Monitoring Extn | RNS |
| 08/06/21 | 16:36:25 | 8 Jun 2021 | | Price Monitoring Extension | RNS |
| 02/06/21 | 07:00:03 | 2 Jun 2021 | | First production of CoalSwitch™ at Ashland | RNS |
| 21/05/21 | 16:35:52 | 21 May 2021 | | Price Monitoring Extension | RNS |
| 20/05/21 | 07:00:08 | 20 May 2021 | | Strategic Expansion and Operational Update | RNS |
| 13/05/21 | 14:05:49 | 13 May 2021 | | Second Price Monitoring Extn | RNS |
| 13/05/21 | 14:00:33 | 13 May 2021 | | Price Monitoring Extension | RNS |
| 07/05/21 | 11:06:02 | 7 May 2021 | | Second Price Monitoring Extn | RNS |
| 07/05/21 | 11:00:35 | 7 May 2021 | | Price Monitoring Extension | RNS |
| 07/05/21 | 09:05:30 | 7 May 2021 | | Second Price Monitoring Extn | RNS |
| 07/05/21 | 09:00:20 | 7 May 2021 | | Price Monitoring Extension | RNS |
| 07/05/21 | 07:00:03 | 7 May 2021 | | Issuance of Notice by NCDEQ | RNS |
| 04/05/21 | 07:00:13 | 4 May 2021 | | Response to allegations made by SELC | RNS |
| 09/04/21 | 07:00:04 | 9 Apr 2021 | | Director Dealing | RNS |
| 08/04/21 | 11:46:23 | 8 Apr 2021 | | Response to Publication & IP Applications Update | RNS |
| 08/04/21 | 11:05:18 | 8 Apr 2021 | | Second Price Monitoring Extn | RNS |
| 08/04/21 | 11:00:18 | 8 Apr 2021 | | Price Monitoring Extension | RNS |
| 06/04/21 | 07:00:06 | 6 Apr 2021 | | Application to OTCQB Venture Market | RNS |
| 01/04/21 | 07:00:10 | 1 Apr 2021 | | London South East Investor Evening Webinar | RNS |
| 10/03/21 | 11:06:06 | 10 Mar 2021 | | Second Price Monitoring Extn | RNS |
| 10/03/21 | 11:00:49 | 10 Mar 2021 | | Price Monitoring Extension | RNS |
| 10/03/21 | 07:00:08 | 10 Mar 2021 | | Standard form for notification of major holdings | RNS |