| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.19 | USD | 20250922 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1012.57 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1096.95 | USD | 20250922 |
| Sinopec/sabic Tianjin Petrochemical Company Limited | China national standards | MT | 998.51 | USD | 20250922 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.19 | USD | 20250922 |