| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.2 | USD | 20251020 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.25 | USD | 20251020 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.29 | USD | 20251020 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.29 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.24 | USD | 20251020 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 239.53 | USD | 20251020 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.34 | USD | 20251020 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.43 | USD | 20251020 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 338.16 | USD | 20251020 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 295.89 | USD | 20251020 |