| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1041.97 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1013.81 | USD | 20250912 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 957.49 | USD | 20250912 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 957.49 | USD | 20250912 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 985.65 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1013.97 | USD | 20250909 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1056.22 | USD | 20250909 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1126.63 | USD | 20250909 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 957.64 | USD | 20250909 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 985.8 | USD | 20250909 |