| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 775.73 | USD | 20251105 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 775.9 | USD | 20251104 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.44 | USD | 20251104 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.66 | USD | 20251103 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.5 | USD | 20251031 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.69 | USD | 20251030 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.94 | USD | 20251029 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.79 | USD | 20251028 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.49 | USD | 20251027 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.93 | USD | 20251024 |