| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1540.44 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1540.44 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1512.18 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1512.18 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1540.44 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1512.18 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1512.18 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1512.18 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1596.29 | USD | 20251130 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1539.79 | USD | 20251130 |