| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.62 | USD | 20251210 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 826.82 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1173.1 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.62 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1109.49 | USD | 20251210 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1158.96 | USD | 20251210 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 946.96 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.62 | USD | 20251210 |