| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1026.88 | USD | 20250929 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250929 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| 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 | 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 |