| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 908.27 | USD | 20251202 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 865.89 | USD | 20251202 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 908.27 | USD | 20251202 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1130.04 | USD | 20251202 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 908.27 | USD | 20251202 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.79 | USD | 20251202 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 960.53 | USD | 20251202 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1158.29 | USD | 20251202 |
| Sinopec/sabic Tianjin Petrochemical Company Limited | China national standards | MT | 875.78 | USD | 20251202 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 865.89 | USD | 20251202 |