| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1198.4 | USD | 20251024 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.92 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.5 | USD | 20251024 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1198.4 | USD | 20251024 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.12 | USD | 20251024 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.02 | USD | 20251024 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1092.66 | USD | 20251024 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.92 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1240.69 | USD | 20251024 |