| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 239.54 | USD | 20251016 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 295.91 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.32 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.23 | USD | 20251016 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 338.18 | USD | 20251016 |
| Jiangsu Lee & Man Chemical Limited | China national standards | MT | 239.54 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.45 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.27 | USD | 20251016 |