| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1194.47 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1169.18 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1208.53 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1208.53 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.4 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1194.47 | USD | 20250825 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1194.47 | USD | 20250825 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1208.53 | USD | 20250825 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 955.58 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 983.68 | USD | 20250825 |