Languages and translations English File type1 Session 2 - 2. Recent accidents, lessons learned and challenges - Mr Oleg Vilchik, Geotechnical Engineer, KAZ Minerals or Mr Trent Collins Head of Dams and Tailings Storage Facilities, KAZ Minerals_ENG.pdf (application/pdf, 362.32 KB) Russian File type1 Session 2 - 2. Recent accidents, lessons learned and challenges - Mr Oleg Vilchik, Geotechnical Engineer, KAZ Minerals or Mr Trent Collins Head of Dams and Tailings Storage Facilities, KAZ Minerals_RUS.pdf (application/pdf, 384.35 KB)