| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 401.97 | USD | 20251105 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.06 | USD | 20251104 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.16 | USD | 20251103 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.09 | USD | 20251101 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.18 | USD | 20251030 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.3 | USD | 20251029 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.22 | USD | 20251028 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.08 | USD | 20251027 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 401.82 | USD | 20251025 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 401.82 | USD | 20251024 |