The Bank of Japan calculated the price index of some fasteners and related raw materials in April 2011 based on the 2005 Corporate Price Index (CGPI) (set to 100). The specific situation is shown in the following table:

Japan's domestic wholesale price index Standards kind 2011/4 2010/4 previous month (%) ratio (%) last year, the total average 105.6 103.0 0.9 112.5 109.4 0.0 2.8 2.5 bolt nut screw 125.9 117.5 0.0 7.1 113.6 112.9 0.0 126.7 122.5 0.0 3.4 0.6 Rivet Small bars 119.2 114.1 0.8 4.5 Wire 144.5 139.8 0.3 3.4 Alloy tool steel 104.0 105.0 -0.1 -1.0 Carbon steel for mechanical construction 151.5 120.9 0.0 25.3 Alloy steel for construction 140.7 116.2 0.0 21.1 Spring steel 132.8 116.6 0.0 13.9 Bearing steel 125.3 109.2 0.0 14.7 fast cutting steel 135.5 120.0 0.0 12.9 piano line 133.0 123.1 0.0 8.0 high strength steel 124.9 118.7 0.0 5.2 grinding rod steel 145.2 129.5 0.1 12.1 iron wire 137.0 126.3 3.8 8.5 hard steel wire 128.9 123.8 0.0 4.1 stainless steel wire 121.6 116.9 1.0 4.0 cold rolled carbon for stamping Steel Wire 140.3 131.1 0.0 7.0 Brass Steel 185.9 174.0 0.4 6.8 Aluminum Alloy Rod 102.0 101.3 1.4 0.7 Solder 139.9 123.1 -0.9 13.6 Lead- Acid Die Casting 106.0 111.1 0.1 -4.6 Die Casting Aluminum and Aluminum 106.9 105.0 0.2 1.8

2011/4 2010/4 type export price index previous month (%) last ratio (%) 90.6 2.2 87.9 -3.0 total average bolts, nuts 100.7 107.3 2.0 101.0 99.9 5.3 1.1 -6.2 wire spring steel rod mill 121.0 113.2 1.3 6.9 Steel 110.1 92.9 1.6 18.5

Import price index species 2011/4 2010/4 previous month (%) than last year (%) Total 121.2 111.1 5.5 9.1 Average bolts, nuts 154.5 137.4 1.6 12.4