| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 789.03 | USD | 20251020 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.99 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 774.94 | USD | 20251020 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1408.99 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 789.03 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 922.89 | USD | 20251020 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 887.66 | USD | 20251020 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 831.3 | USD | 20251020 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.75 | USD | 20251020 |