| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.9 | USD | 20251028 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.26 | USD | 20251028 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.6 | USD | 20251027 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.03 | USD | 20251024 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.21 | USD | 20251024 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 867.2 | USD | 20251023 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.36 | USD | 20251023 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1028.84 | USD | 20251022 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 866.76 | USD | 20251022 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.18 | USD | 20251021 |