| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.22 | USD | 20251110 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251107 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251107 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.73 | USD | 20251105 |