| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.84 | USD | 20251104 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.55 | USD | 20251104 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.77 | USD | 20251103 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.1 | USD | 20251103 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 931.32 | USD | 20251103 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 860.61 | USD | 20251031 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.91 | USD | 20251031 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.14 | USD | 20251030 |