Qinhuangdao's coal stocks stood at 6.33 Mt on Nov 24, stable week on week yet 16.15% and 12.83% higher from the month-ago and the year-ago level; the overall inventory at the three N China ports (Qinhuangdao, Caofeidian and Jingtang) retreated by 1.64% WoW, but up 8.62% MoM and 39.76% YoY, Sxcoal's data showed.