| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1173.0 | USD | 20251201 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.33 | USD | 20251201 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 882.91 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1002.98 | USD | 20251130 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 875.84 | USD | 20251130 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 875.84 | USD | 20251130 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 875.84 | USD | 20251130 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 875.84 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1002.98 | USD | 20251130 |