| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 365.95 | USD | 20251012 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.1 | USD | 20251012 |
| China national standards | MT | 422.25 | USD | 20251012 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.25 | USD | 20251012 |
| China national standards | MT | 295.57 | USD | 20251012 | |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.25 | USD | 20251012 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.25 | USD | 20251011 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.25 | USD | 20251011 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.25 | USD | 20251011 |
| China national standards | MT | 422.25 | USD | 20251011 |