| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 987.92 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251028 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251028 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 987.92 | USD | 20251028 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 889.13 | USD | 20251028 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 987.92 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.88 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251028 |