| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.43 | USD | 20251120 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.58 | USD | 20251119 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.75 | USD | 20251119 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.85 | USD | 20251117 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.8 | USD | 20251115 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.98 | USD | 20251114 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.8 | USD | 20251114 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 352.78 | USD | 20251113 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 331.62 | USD | 20251113 |