| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.36 | USD | 20251016 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 944.09 | USD | 20251016 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1056.81 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1240.0 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1240.0 | USD | 20251016 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.81 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.59 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1197.72 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.36 | USD | 20251016 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1268.18 | USD | 20251016 |