| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.53 | USD | 20251118 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.85 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.92 | USD | 20251118 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.84 | USD | 20251117 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.12 | USD | 20251117 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 988.48 | USD | 20251117 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.12 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.84 | USD | 20251117 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.06 | USD | 20251115 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 480.06 | USD | 20251115 |