| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 846.79 | USD | 20251110 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.03 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 847.03 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 847.03 | USD | 20251107 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 847.03 | USD | 20251107 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |