| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1205.33 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1205.33 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.08 | USD | 20250813 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1205.33 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1204.18 | USD | 20250812 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1204.18 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1008.15 | USD | 20250812 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1190.18 | USD | 20250812 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.16 | USD | 20250812 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1120.17 | USD | 20250812 |