| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 731.83 | USD | 20250930 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 731.83 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 900.71 | USD | 20250930 |