| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.39 | USD | 20250926 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 255.79 | USD | 20250926 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 255.79 | USD | 20250926 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 281.09 | USD | 20250926 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 281.09 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.28 | USD | 20250926 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 337.31 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.28 | USD | 20250926 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 337.31 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.36 | USD | 20250926 |