12月原生系铝合金企业开工率为31.59%，环比增长17.39%，同比下降28.11%。企业开工率增长的主要原因是临近春节，下游开始备货，订单稍微好转加上铝价上涨，加工费合适，企业生产更为积极。
| 2021 | 1月 | 2月 | 3月 | 4月 | 5月 | 6月 | 7月 | 8月 | 9月 | 10月 | 11月 | 12月 |
| 开工率 | 42.83% | 34.76% | 40.03% | 42.47% | 41.69% | 36.48% | 35.38% | 32.16% | 26.25% | 25.81% | 26.91% | 31.59% |
| 环比 | -2.59% | -18.84% | 15.16% | 6.10% | -1.84% | -12.50% | -3.02% | -9.10% | -18.38% | -1.68% | 4.26% | 17.39% |
| 同比 | 1.69% | 809.95% | 27.08% | 5.86% | 6.71% | -19.54% | -15.76% | -22.36% | -42.65% | -46.62% | -44.23% | -28.11% |
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