| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 914.76 | USD | 20250925 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 914.76 | USD | 20250925 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250925 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 971.05 | USD | 20250925 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1090.67 | USD | 20250924 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 971.05 | USD | 20250924 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 1069.56 | USD | 20250924 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250924 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1048.45 | USD | 20250924 |
| Jinan Xinbo Chemical Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250924 |