| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi Bidiou Chemical Industry Co., Ltd. | China national standards | MT | 1068.83 | USD | 20250922 |
| Shaanxi Bidiou Chemical Industry Co., Ltd. | China national standards | MT | 1068.5 | USD | 20250920 |
| Shaanxi Bidiou Chemical Industry Co., Ltd. | China national standards | MT | 1068.5 | USD | 20250919 |
| Shaanxi Bidiou Chemical Industry Co., Ltd. | China national standards | MT | 1069.14 | USD | 20250918 |