| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 369.83 | USD | 20251029 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 369.83 | USD | 20251029 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.01 | USD | 20251029 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.47 | USD | 20251029 |
| China national standards | MT | 331.72 | USD | 20251029 | |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.83 | USD | 20251028 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.39 | USD | 20251028 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.39 | USD | 20251028 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 395.17 | USD | 20251028 |
| China national standards | MT | 423.39 | USD | 20251028 |