| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.03 | USD | 20251119 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 839.54 | USD | 20251119 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.26 | USD | 20251118 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 839.73 | USD | 20251118 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 840.21 | USD | 20251117 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.84 | USD | 20251117 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.71 | USD | 20251114 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 840.1 | USD | 20251114 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.13 | USD | 20251113 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 839.62 | USD | 20251113 |