| 日期 | 品名 | 库存 | 增减 |
| 2021-3-29 | 钴 | 317 | 0 |
| 2021-3-30 | 钴 | 294 | -23 |
| 2021-3-31 | 钴 | 294 | 0 |
| 2021-4-1 | 钴 | 294 | 0 |
| 2021-4-6 | 钴 | 294 | 0 |
| 2021-4-7 | 钴 | 294 | 0 |
| 2021-4-8 | 钴 | 294 | 0 |
| 2021-4-9 | 钴 | 294 | 0 |
| 2021-4-12 | 钴 | 294 | 0 |
| 2021-4-13 | 钴 | 294 | 0 |
| 2021-4-14 | 钴 | 294 | 0 |
| 2021-4-15 | 钴 | 294 | 0 |
| 2021-4-16 | 钴 | 294 | 0 |
(关键字：金属钴 LME 库存)