SHANGHAI, Dec 9 (SMM) - As of December 9, bonded zone inventory of nickel stood at 6,300 mt, with the inventory of nickel briquette and nickel plate of 1,370 mt and 4,930 mt respectively. Spot import losses surged to 30,000 yuan/mt in the week as the price difference between domestic and overseas futures prices did not show signs of narrowing and the SHFE/LME nickel price ratio fell to 7. Sources of the imported spot were scarce amid the lower-than-expected customs clearance volume and the domestic pure nickel rigid demand, thus some pure nickel was shipped to ports to clear customs in the week.