| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2200.9 | USD | 20251101 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2200.9 | USD | 20251031 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2201.4 | USD | 20251030 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2202.05 | USD | 20251029 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2201.65 | USD | 20251028 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2201.65 | USD | 20251028 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2200.87 | USD | 20251027 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2199.41 | USD | 20251025 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2199.41 | USD | 20251024 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2198.61 | USD | 20251022 |