| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.36 | USD | 20251119 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.6 | USD | 20251118 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1073.2 | USD | 20251117 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251115 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251114 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.46 | USD | 20251113 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.95 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.45 | USD | 20251111 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.6 | USD | 20251110 |