| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 351.18 | USD | 20250826 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 293.59 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.21 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.28 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.21 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.18 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.23 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.11 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.16 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 351.18 | USD | 20250826 |