Shares in Welshpool-based Advanced Nanotechnology Ltd fell by 6.25 per cent today after UK-based customer Oxonica plc announced the end of its supply contract with Turkish oil company Petrol Ofisi AS.

Shares in Welshpool-based Advanced Nanotechnology Ltd fell by 6.25 per cent today after UK-based customer Oxonica plc announced the end of its supply contract with Turkish oil company Petrol Ofisi AS.