| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 1072.23 | USD | 20251031 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1340.29 | USD | 20251031 |
| Befar Group Co., Ltd. | China national standards | MT | 888.83 | USD | 20251031 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1029.91 | USD | 20251031 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1199.21 | USD | 20251031 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1036.96 | USD | 20251031 |