| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 369.15 | USD | 20251020 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.52 | USD | 20251020 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.29 | USD | 20251020 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.84 | USD | 20251019 |
| China national standards | MT | 408.74 | USD | 20251019 | |
| China national standards | MT | 295.99 | USD | 20251019 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 331.22 | USD | 20251019 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 408.74 | USD | 20251019 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 366.46 | USD | 20251018 |
| China national standards | MT | 366.46 | USD | 20251018 |