| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1098.47 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1098.47 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1077.34 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1253.38 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1281.55 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1105.51 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1042.14 | USD | 20250909 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1126.63 | USD | 20250909 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1056.22 | USD | 20250909 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1055.91 | USD | 20250908 |