| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.14 | USD | 20251120 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.4 | USD | 20251119 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.53 | USD | 20251118 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.84 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.84 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.77 | USD | 20251114 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.71 | USD | 20251112 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.45 | USD | 20251111 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.53 | USD | 20251110 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.68 | USD | 20251108 |