| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1026.69 | USD | 20251009 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 900.12 | USD | 20251009 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20251005 |
| 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 | 900.71 | USD | 20250930 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1027.37 | USD | 20250930 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1026.88 | 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 |