On 6 and 7 July, certification firm Bureau Veritas Certification carried out supervisory audit of compliance of the Integrated Quality, Environmental and Safety Management System with the requirements of the Standards ISO 9001, ISO 14001 un OHSAS 18001. Discrepancies were not found during the audit. A statement made by the auditors has been received in which it has been indicated that the Integrated Management System complies with requirements of the standards mentioned above and is considered as effective.