| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1352.72 | USD | 20251016 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 845.45 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.36 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1183.63 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.36 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1148.4 | USD | 20251016 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1521.81 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1148.4 | USD | 20251016 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 1606.36 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.36 | USD | 20251016 |