| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1204.18 | USD | 20250812 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.14 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.15 | USD | 20250812 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1204.4 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.18 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1190.39 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1169.39 | USD | 20250811 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1204.4 | USD | 20250811 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.31 | USD | 20250811 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.32 | USD | 20250811 |