| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 918.95 | USD | 20251204 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1244.12 | USD | 20251204 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.99 | USD | 20251204 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 876.54 | USD | 20251204 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 841.19 | USD | 20251204 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1173.43 | USD | 20251204 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.99 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1102.74 | USD | 20251204 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1201.35 | USD | 20251203 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1052.94 | USD | 20251203 |