I am a 64 year old Mine Ventilation and Occupational Hygiene practitioner with 43 years of experience in Mine Ventilation, Refrigeration and Occupational Hygiene. I have been the Subject Matter Expert for Lonmin Platinum since 2004 and together with my responsibilities as the MHSA Sect 12.1 Appointee, i have drafted all Standards SOP's and policies in terms of Vent and Occupational Hygiene, Ventilation, Emergency Preparedness, Lamproom Management and Underground Sanitation.