| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 855.9 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 870.04 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 870.04 | USD | 20251211 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 792.24 | USD | 20251211 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 728.57 | USD | 20251211 |
| JIN Yimeng Group Co., Ltd. | China national standards | MT | 721.5 | USD | 20251211 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 752.62 | USD | 20251211 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 752.62 | USD | 20251211 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 771.02 | USD | 20251211 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 771.02 | USD | 20251211 |