| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.92 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | Industrial Grade | MT | 886.26 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.5 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.36 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 907.36 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.5 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 907.36 | USD | 20250918 |