| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 354.54 | USD | 20251126 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.5 | USD | 20251126 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 360.19 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.25 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.44 | USD | 20251126 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 353.13 | USD | 20251126 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.53 | USD | 20251126 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.57 | USD | 20251126 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.69 | USD | 20251126 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.13 | USD | 20251126 |