| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 987.92 | USD | 20251028 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 945.58 | USD | 20251028 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 994.98 | USD | 20251028 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251028 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251028 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 917.35 | USD | 20251028 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1002.03 | USD | 20251028 |