| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 746.16 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.85 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 865.83 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 851.75 | USD | 20250829 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 703.6 | USD | 20250828 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 703.6 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 851.36 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 865.43 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.03 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 788.03 | USD | 20250828 |