| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250929 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 899.48 | USD | 20250928 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1025.97 | USD | 20250928 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 899.48 | USD | 20250926 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1025.97 | USD | 20250926 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1027.34 | USD | 20250925 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250925 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1027.34 | USD | 20250924 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250924 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1027.34 | USD | 20250923 |