The following tables show the volume of building materials used in fiscal 2008, as well as the generation of CO2 emissions, waste, and hazardous substances.

The tables also show the extent, in terms of both volume and percentage, to which Kajima's main building materials were supplied through green procurement*1 (i.e. use of recycled materials).
Recycled materials accounted for 47%, which demonstrates how aggressively Kajima has advanced on this front.

*1 Only the cement portion of ready-mixed concrete was included in calculations of the green procurement rate.

Environmental conservation costs in fiscal 2008 amounted to ¥22.4 billion, down ¥9.8 billion from the previous fiscal year. The decrease was a result of two factors: a large number of one-off waste handling fees in fiscal 2007, and a sharp drop in waste disposal fees in fiscal 2008 owing to the success of waste reduction efforts.