| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 846.05 | USD | 20251023 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.62 | USD | 20251022 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.39 | USD | 20251020 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.68 | USD | 20251018 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.68 | USD | 20251017 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.45 | USD | 20251016 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 845.13 | USD | 20251015 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 844.82 | USD | 20251014 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 844.99 | USD | 20251013 |