| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251107 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.35 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.81 | USD | 20251105 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.05 | USD | 20251104 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.32 | USD | 20251103 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251101 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251101 |