| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.12 | USD | 20251209 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 918.43 | USD | 20251209 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1172.76 | USD | 20251209 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.12 | USD | 20251209 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 974.95 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 908.54 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1109.18 | USD | 20251209 |