| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.95 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 438.17 | USD | 20251206 |
| Shandong Yuxuan Chemical Products Co., Ltd. | 90% | MT | 551.24 | USD | 20251206 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 438.17 | USD | 20251206 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 325.09 | USD | 20251206 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.77 | USD | 20251206 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 565.38 | USD | 20251206 |
| Shandong Luxi Chemical Co., Ltd. | 90% | MT | 537.11 | USD | 20251206 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 325.09 | USD | 20251205 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 339.23 | USD | 20251205 |