| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 790.07 | USD | 20251031 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 790.48 | USD | 20251029 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 789.24 | USD | 20251022 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 795.14 | USD | 20250924 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 795.14 | USD | 20250923 |