| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.83 | USD | 20250924 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.72 | USD | 20250924 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.72 | USD | 20250923 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.83 | USD | 20250923 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.59 | USD | 20250922 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.49 | USD | 20250922 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.39 | USD | 20250919 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.48 | USD | 20250919 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.59 | USD | 20250918 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.69 | USD | 20250918 |