| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1031.38 | USD | 20251127 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1031.13 | USD | 20251126 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 840.44 | USD | 20251126 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 840.09 | USD | 20251125 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.69 | USD | 20251125 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1030.39 | USD | 20251124 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 839.84 | USD | 20251124 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.98 | USD | 20251121 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 839.15 | USD | 20251120 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.55 | USD | 20251120 |