5.11.2019 | shareholder updates Share Ownership Report 31 October 2019 download pdf Share this page Latest Updates 3.04.2020 | Company Updates 12M2019 PTRO Company Update 24.03.2020 | Shareholder Updates Disclosure of Information – Acquire of Important Contract 24.03.2020 | Shareholder Updates Disclosure of Information – Change of Member of the Board of Directors