Eastern China (Shanghai): 3,990-4,000 yuan ($594-595) per tonne, down 20 yuan per tonne
Northern China (Tianjin): 3,900-3,920 yuan per tonne, down 10-20 yuan per tonne
Prices dropped after mills lowered offer prices in the morning session.
A mill in northern China cut its offer prices by 40 yuan per tonne amid lackluster demand since last week.
A source at an eastern China-based mill, meanwhile, said his company's inventory levels are rising, adding that increased stockpiles are forcing...