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Investor Presentaiton

Wenchuan Risk Table Yang et al 2010 Table 1 Standard for breach risk evaluation of Quake lakes Influence factors Endangered lives in downstream area (thousand) Risk level Extremely high risk High risk Medium risk Low risk >1000 500-1000 100-500 <100 Materials and structure Mostly soils, Soils with massive of landslide dam loose rubble, medium Massive rubble with soils, Mostly massive rubble, with structure loose structure dense structure gaps Maximum probable 10³ 104-105 10³-10+ <103 storage capacity (1000 m³) Quake lake catchment >1000 100-1000 50-100 <50 area (km²) Landslide dam height (m) >100 50-100 25-50 <25
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