| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.8 | USD | 20251030 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.45 | USD | 20251029 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 861.06 | USD | 20251029 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 959.87 | USD | 20251029 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 959.87 | USD | 20251029 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.26 | USD | 20251028 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.9 | USD | 20251028 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.6 | USD | 20251027 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.21 | USD | 20251024 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.03 | USD | 20251024 |