| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 848.07 | USD | 20251205 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 848.26 | USD | 20251204 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 777.34 | USD | 20251203 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 848.01 | USD | 20251203 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 776.9 | USD | 20251202 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.53 | USD | 20251202 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |