| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1196.1 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.18 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.18 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250905 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.18 | USD | 20250905 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1196.31 | USD | 20250904 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 957.05 | USD | 20250904 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 985.19 | USD | 20250904 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.97 | USD | 20250904 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.2 | USD | 20250904 |