| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.0 | USD | 20251119 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.94 | USD | 20251117 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.79 | USD | 20251115 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.79 | USD | 20251114 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.12 | USD | 20251113 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.1 | USD | 20251111 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.27 | USD | 20251110 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.6 | USD | 20251107 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1181.12 | USD | 20251106 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1180.52 | USD | 20251105 |