| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 820.53 | USD | 20251211 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 820.53 | USD | 20251211 |
| Sinopec Shanghai Gaoqiao Petrochemical Company | China national standards | MT | 841.75 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1103.47 | USD | 20251211 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1061.03 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1244.94 | USD | 20251211 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1244.94 | USD | 20251211 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1053.96 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1004.44 | USD | 20251211 |