| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.52 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1196.86 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.94 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.94 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.74 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.92 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1197.05 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.7 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1211.13 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1211.13 | USD | 20250909 |