Ok Tedi Risk Assessment

Ok Tedi Mining Limited relied on the RISQUE quantitative risk assessment at several critical project stages to guide its selection of preferred options.

Malcolm Lane was project manager and risk assessor for four financial risk assessments associated with the engineering, environmental and social aspects of a range of tailings options for the Ok Tedi copper/gold mine in Papua New Guinea (1996, 1999, 2000 and 2006). The risk assessment outcomes directed and supported Ok Tedi Mining's decision of its preferred option.

The first risk assessment was commissioned while the mining company was facing a A$4 billion law suit for environmental damage to the Ok Tedi river, and commitment to adopting the outcomes of the risk assessment was part of the out-of-court settlement. The 1999 assessment was audited by the World Bank on behalf of the PNG government, which stated that "...the bank's technical team that reviewed the report is unequivocal in its overall opinion: the risk assessment and underlying technical reports are first rate and state of the art in terms of environmental science and risk assessment methodologies".


Contact Details

Phone:(09) 445 2995
 +64 9 445 2995