Taiheiyo Cement Corp, half-year ended September 30, 2004: Group  sales were Y413.09 bln, down from Y429.92bn a year earlier. Operating profit remained unchanged at Y16.71 bln, while pretax profit  was up from Y10.10 bn to Y11.24 bln and Net Profit was down to Y6.26bn from  Y6.41bn a year ago.