Taiwan Cement Corp (1101.TW) said its parent sales in November fell to 2.13bn twd from 2.54bn in the same month last year. Parent sales for the first 11 months of the year decreased to 23.96bn twd from 25.83bn in the year-ago period, it said. At 12.02 pm, Taiwan Cement was down 0.40 twd at 30.30. (1 US$ = 32.40 twd).