| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.88 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.88 | USD | 20250916 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 689.88 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.88 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 760.27 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 760.27 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 788.43 | USD | 20250916 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 746.2 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 774.35 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 788.43 | USD | 20250916 |