| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251018 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.22 | USD | 20251018 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.22 | USD | 20251017 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251017 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.22 | USD | 20251017 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.79 | USD | 20251017 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.09 | USD | 20251016 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.63 | USD | 20251016 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.36 | USD | 20251016 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 985.98 | USD | 20251015 |