以下为伦敦金属交易所(LME)12月20日基金属库存变化情况（单位：吨）
                                                            
                                                          金属   库存      增减     变动%
                                                          铜     201150   -575     -0.29
                                                          铝     1107975  2100    0.19
                                                          锌     189725   -1600    -0.84
                                                          镍     374934   432     0.12
                                                          铅     142000   -1550    -1.08
                                                          锡     2345     0       -
                                                          铝合金  13500    0       -