| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 984.74 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 1069.14 | USD | 20250918 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.46 | USD | 20250918 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.23 | USD | 20250918 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1336.43 | USD | 20250918 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1223.89 | USD | 20250918 |