| 17/09/19 | 08:00:11 | 17 Sept 2019 | | New Targets Confirm Extensive Mineralised System | RNS |
| 12/09/19 | 08:00:05 | 12 Sept 2019 | | Further drill results up to 2.79% Cu at Cheyeza | RNS |
| 21/08/19 | 13:37:20 | 21 Aug 2019 | | Drill for Equity Programme | RNS |
| 20/08/19 | 12:05:49 | 20 Aug 2019 | | Second Price Monitoring Extn | RNS |
| 20/08/19 | 12:00:47 | 20 Aug 2019 | | Price Monitoring Extension | RNS |
| 20/08/19 | 11:28:26 | 20 Aug 2019 | | TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES | RNS |
| 20/08/19 | 08:00:10 | 20 Aug 2019 | | Mineralised Zone Extends to 300m Wide, 650m Long | RNS |
| 07/08/19 | 08:00:06 | 7 Aug 2019 | | Directors' Dealing | RNS |
| 29/07/19 | 12:59:56 | 29 Jul 2019 | | Drill for Equity Programme | RNS |
| 24/07/19 | 08:00:04 | 24 Jul 2019 | | Results from Cheyeza East inc. 7.60m at 4.15% Cu | RNS |
| 18/07/19 | 17:11:54 | 18 Jul 2019 | | Exercise of Warrants & Issue of Equity | RNS |
| 17/07/19 | 08:00:03 | 17 Jul 2019 | | Results from Cheyeza East inc. 13m at 2.31% Cu | RNS |
| 08/07/19 | 11:18:14 | 8 Jul 2019 | | TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES | RNS |
| 08/07/19 | 08:00:05 | 8 Jul 2019 | | Grant of Options | RNS |
| 05/07/19 | 08:00:04 | 5 Jul 2019 | | Acquisition of further interest in Zaco | RNS |
| 04/07/19 | 08:00:04 | 4 Jul 2019 | | Large New Target Identified at Zamsort | RNS |
| 02/07/19 | 08:00:09 | 2 Jul 2019 | | Maiden Drilling confirms 25m of over 1% Copper | RNS |
| 01/07/19 | 17:40:37 | 1 Jul 2019 | | Second Price Monitoring Extn | RNS |
| 01/07/19 | 17:35:19 | 1 Jul 2019 | | Price Monitoring Extension | RNS |
| 27/06/19 | 17:40:26 | 27 Jun 2019 | | Second Price Monitoring Extn | RNS |
| 27/06/19 | 17:35:36 | 27 Jun 2019 | | Price Monitoring Extension | RNS |
| 12/06/19 | 08:00:04 | 12 Jun 2019 | | Zambia - Commencement of Drilling | RNS |
| 05/06/19 | 08:00:06 | 5 Jun 2019 | | Zambia - Exploration & Drilling Update | RNS |
| 03/06/19 | 15:31:09 | 3 Jun 2019 | | TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES | RNS |
| 31/05/19 | 08:00:04 | 31 May 2019 | | Board Appointment | RNS |
| 30/05/19 | 13:12:56 | 30 May 2019 | | Investor Conference Call | RNS |
| 08/05/19 | 08:00:05 | 8 May 2019 | | Directors' Dealing | RNS |
| 12/04/19 | 08:00:04 | 12 Apr 2019 | | Zamsort - Exploration & Drilling Update | RNS |
| 08/04/19 | 08:00:04 | 8 Apr 2019 | | Plant update | RNS |
| 22/03/19 | 16:03:56 | 22 Mar 2019 | | Directors' Dealing | RNS |
| 11/03/19 | 15:21:55 | 11 Mar 2019 | | Directors' Dealing | RNS |
| 21/02/19 | 07:00:13 | 21 Feb 2019 | | Sale of Andiamo for US$250,000 | RNS |
| 19/02/19 | 16:31:42 | 19 Feb 2019 | | Post Indaba Investor Conference Call | RNS |
| 19/02/19 | 07:00:11 | 19 Feb 2019 | | £2.2 million ($2.9m) Equity Injection | RNS |
| 15/02/19 | 16:40:56 | 15 Feb 2019 | | Second Price Monitoring Extn | RNS |
| 15/02/19 | 16:35:49 | 15 Feb 2019 | | Price Monitoring Extension | RNS |
| 05/02/19 | 10:30:01 | 5 Feb 2019 | | Board Appointment | RNS |
| 04/02/19 | 07:00:04 | 4 Feb 2019 | | Significant New Targets Discovered at Zamsort | RNS |
| 29/01/19 | 07:00:07 | 29 Jan 2019 | | Commercial Scale Demonstration Plant Update | RNS |
| 19/12/18 | 18:14:27 | 19 Dec 2018 | | Interim Results | RNS |
| 29/11/18 | 12:01:08 | 29 Nov 2018 | | Issue of Equity and Change in Total Voting Rights | RNS |
| 28/11/18 | 12:34:51 | 28 Nov 2018 | | Result of AGM and Directorate Change | RNS |
| 28/11/18 | 09:18:00 | 28 Nov 2018 | | Kalaba Drilling Programme and CSD Plant Update | RNS |
| 22/11/18 | 15:30:01 | 22 Nov 2018 | | Exercise of Warrants & Issue of Equity | RNS |
| 14/11/18 | 07:00:02 | 14 Nov 2018 | | High Grade Cobalt drill results from shallow oxide | RNS |
| 30/10/18 | 07:00:11 | 30 Oct 2018 | | Michael Foster Options Awards | RNS |
| 24/10/18 | 15:20:08 | 24 Oct 2018 | | Director Share Purchases - Nick von Schirnding | RNS |
| 24/10/18 | 13:45:02 | 24 Oct 2018 | | Notice of Annual General Meeting | RNS |
| 23/10/18 | 08:00:03 | 23 Oct 2018 | | Arc Initiates Airborne Geophysical Programme | RNS |
| 16/10/18 | 08:00:08 | 16 Oct 2018 | | Arc Reports Elevated Copper Intersections | RNS |