| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.3 | USD | 20251119 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.58 | USD | 20251114 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.34 | USD | 20251113 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.39 | USD | 20251110 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.51 | USD | 20251107 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.34 | USD | 20251106 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.13 | USD | 20251105 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.13 | USD | 20251105 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 423.22 | USD | 20251104 |