| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.73 | USD | 20250930 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.57 | USD | 20250929 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.67 | USD | 20250929 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.28 | USD | 20250927 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.36 | USD | 20250927 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.28 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.36 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.28 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.72 | USD | 20250925 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.83 | USD | 20250925 |