Follow Oliver on: A glance at some of the day's highlights from the Proactive Investor's newswire Mailbox REIT PLC (LON:MBOX) has become the first company to list on the IPSX specialist property exchange with a valuation of £84.85mln. Avation PLC (LON:AVAP) said it has sold one of its ATR 72-600 aircraft with manufacturer number 1591 at current market rates to a regional aircraft lessor. Argo Blockchain PLC (LON:ARB) said it has signed a crypto climate accord (CCA) in partnership with DMG Blockchain Solutions to promote the decarbonisation of the cryptocurrency industry. e-Therapeutics PLC (LON:ETX) raised £22.5mln in an equity funding, comprising a placing and a retail offer.