| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.5 | USD | 20250918 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 647.11 | USD | 20250918 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 928.47 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 829.99 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 829.99 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 829.99 | USD | 20250918 |