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Petra Diamonds Limited Sustainability Report 201221HEALTH AND SAFETYHealth and SafetyInstilling a safety culture continuedOccupational illnessesWe have stringent occupational illness policies in place across our operations in line with our objective of recording zero harm. However, the nature of our operations and the long latency of many occupational illnesses means that monitoring plays a key role in addressing these issues. All formal agreements with trade unions at our mines include provisions relating to occupational health and safety (apart from at Kimberley Underground where such an agreement is currently being negotiated). Each South African operation has a formal management-worker committee which provides input into occupational health and safety programmes, whereas Williamson in Tanzania has an informal system whereby the mine's HSE representatives forward matters for consideration at the senior safety committee meetings.The major causes of occupational illnesses at our operations are noise induced hearing loss ("NIHL"), respiratory illnesses, and injuries resulting from repetitive activities.Our approach to tackling these issues is based on rigorous ongoing monitoring of individuals and workplaces, as well as the provision of PPE in the case of NIHL and respiratory illnesses. We have a particular focus on reducing NIHL, in line with South African Mine Health and Safety Council targets. Focusing on employees most exposed to noise, we undertake regular testing of employees and contractors at risk of NIHL and investigate any shifts in which noise levels exceed set levels. In addition we have issued improved hearing protection equipment to affected staff and provided additional training. We recorded seven new cases of occupational illnesses during FY 2012, comprising five cases of NIHL, one case of respiratory illness and one case of occupational dermatitis. In addition, most of our operations have wellness programmes in place for staff which focus on issues such as diabetes, alcohol and drug usage, obesity, hypertension, mental health and other possible personal health problems that could affect our employees.CommunityThe key community health issues which impact our operations are HIV/AIDS, tuberculosis and, at the Williamson mine, malaria.HIV/AIDSHIV/AIDS is a significant risk to our workforce as well as to the long-term health of our host communities. We have robust plans to manage this risk at our operations and are in the process of developing a Group wide HIV/AIDS policy.We devote significant resources to tackling the problem and during FY 2012 we conducted more than 6,000 examinations of employees and dependents.We provide Voluntary Counselling and Testing ("VCT") and Anti-Retroviral Treatment ("ART") free of charge to all employees and dependants. More than 1,600 employees underwent VCT during FY 2012, 187 individuals were registered on our Chronic Disease Management Programme and 40 were placed on ART. Throughout the Year we undertook a number of initiatives at our operations to increase awareness and understanding of HIV/AIDS. These included: $ campaigns at our operations to promote uptake of VCT amongst employees and dependents; $ provision of condoms; and$ educational and awareness programmes to dispel myths about the disease and fight discrimination.We also work closely with trade unions and NGOs at a number of operations to improve the delivery of our HIV/AIDs treatment and prevention programmes. TuberculosisThe link between HIV/AIDS and tuberculosis is well known and we provide testing and counselling for tuberculosis at a number of our operations. Tuberculosis is completely curable and we have implemented the internationally recommended Directly Observed Treatment Short Course Strategy at our South African and Tanzanian operations. We recorded five new cases of tuberculosis at our operations during FY 2012.Malaria and waterborne diseasesMalaria is a significant health issue at the Williamson mine in Tanzania, representing 17% of all reported illnesses at the nearby Mwadui village hospital. Williamson has put in place a plan to control mosquitos through the rehabilitation of disturbed land that offers breeding places and has provided mosquito nets in cooperation with Government programmes.Waterborne diseases such as dysentery and typhoid are also a significant issue in the communities around Williamson. The mine's water treatment plant provides clean water to the operation and to Mwadui village and other surrounding communities via established potable water points. In addition, all water sources, dams and discharge ponds undergo quarterly testing. Mwadui Hospital at WilliamsonThe Williamson mine is based in Mwadui, a rural town southeast of Mwanza in the Shinyanga region of northern Tanzania. The Mwadui Hospital was established by the Williamson mine in the 1950s to provide comprehensive medical services free of charge to Williamson employees and their families. In addition, the hospital also services members of the surrounding community at a nominal cost. The Mwadui hospital, which Petra owns and operates, is the only hospital in the Kishapu district where the Williamson mine is located and is fully equipped for small to medium surgical procedures and includes a pharmacy, reproductive health facility, outpatient department, laboratory, X-ray and mortuary. The facility services between 400 and 600 people on a monthly basis. In addition, the hospital has been designated to pilot various health programmes in conjunction with the Tanzanian Government and the relevant NGOs. The programmes include mother and child health, malaria prevention, VCT and ART. These services are provided free of charge to Mwadui and the contiguous communities.The Mwadui hospital at Williamson services between 400 and 600 people on a monthly basis

Petra Diamonds Limited Sustainability Report 201222HEALTH AND SAFETYHealth and SafetyCase study: Installation of the collision warning system at FinschInstallation of a collision warning system at FinschThe Booyco Collision Warning system has been successfully deployed at Finsch to help prevent vehicle collisions, a key risk facing underground mining methods.An important safety consideration for underground mines is the prevention of potential vehicle collisions underground. Petra's Finsch mine suffered its last fatality in 2007 as the result of such an accident, which involved an earthmoving vehicle and a contractor employee who was working on another vehicle that had broken down. This fatality highlighted the urgency and importance of introducing a warning system that would notify both the operators of trackless earthmoving machinery and pedestrians of the proximity of the other, and thus prevent a similar situation from recurring. In 2010, Finsch Mine decided to install the Booyco Collision Warning system on 24 machines operating on 63 production level (630 metres underground) as a test phase, with the intention to roll out the installation to the rest of the underground fleet during subsequent phases should the first phase prove to be successful. The test phase consisted of providing a warning system to pedestrians via an audible alarm and a flashing light fitted on the cap lamp if a vehicle was in close proximity to the pedestrian. The driver of the vehicle is also warned of the presence of pedestrians in the immediate vicinity by a warning alarm and flashing light fitted in the driver cabin. Although some teething problems have been encountered - mostly related to the environment in which the vehicles are used - and are being addressed, the system performs as expected and warns pedestrians and vehicle operators when in close proximity of each other. The warning system was found to be suitable for underground operation where there is an interaction of machines and people and is now required to be fully operational before any relevant vehicle or equipment can be operated. Given the success of the first phase, the intention is to roll out the system to all vehicles and also to implement a vehicle to vehicle detection system, which should further contribute to both vehicle and pedestrian safety for those working underground.One of the earthmoving vehicles at Finsch Diamond Mine fitted with the Booyco PDS system