| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.78 | USD | 20251111 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.78 | USD | 20251111 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.53 | USD | 20251110 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.92 | USD | 20251110 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.85 | USD | 20251110 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.68 | USD | 20251108 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.98 | USD | 20251108 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.98 | USD | 20251107 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 988.2 | USD | 20251107 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.68 | USD | 20251107 |