| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.72 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.37 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.37 | USD | 20251121 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.24 | USD | 20251120 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.14 | USD | 20251120 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.51 | USD | 20251120 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.74 | USD | 20251119 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.7 | USD | 20251119 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.4 | USD | 20251119 |