| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.25 | USD | 20251126 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.0 | USD | 20251126 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 988.76 | USD | 20251126 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.05 | USD | 20251125 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.05 | USD | 20251125 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.76 | USD | 20251125 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.91 | USD | 20251124 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.6 | USD | 20251124 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 988.04 | USD | 20251124 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.37 | USD | 20251122 |