| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.96 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.13 | USD | 20251030 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.13 | USD | 20251030 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.36 | USD | 20251029 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.36 | USD | 20251029 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.22 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.22 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.95 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.43 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.43 | USD | 20251026 |