| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.11 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.11 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.56 | USD | 20251023 |