| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.79 | USD | 20251118 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.27 | USD | 20251117 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.16 | USD | 20251114 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251113 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.67 | USD | 20251111 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.79 | USD | 20251110 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.03 | USD | 20251107 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251106 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.25 | USD | 20251105 |