| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250831 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250830 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 872.87 | USD | 20250830 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 788.4 | USD | 20250830 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 767.28 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250830 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250830 |