| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1208.07 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1168.74 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1194.02 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.95 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1208.07 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1208.07 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1123.78 | USD | 20250826 |
| 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 |