| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.34 | USD | 20251115 |
| China national standards | MT | 389.69 | USD | 20251114 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.34 | USD | 20251114 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 338.86 | USD | 20251114 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 409.46 | USD | 20251114 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.58 | USD | 20251114 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 338.86 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.28 | USD | 20251114 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 338.86 | USD | 20251114 |