| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.52 | USD | 20251104 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.61 | USD | 20251103 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.77 | USD | 20251103 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.71 | USD | 20251101 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.55 | USD | 20251101 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.55 | USD | 20251031 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.71 | USD | 20251031 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.79 | USD | 20251030 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.62 | USD | 20251030 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.89 | USD | 20251029 |