| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 882.97 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1051.16 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 911.0 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 925.02 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 925.02 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1093.2 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.22 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.22 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.21 | USD | 20250813 |