| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.91 | USD | 20251117 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 451.88 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.39 | USD | 20251117 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 423.63 | USD | 20251117 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.45 | USD | 20251117 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 406.69 | USD | 20251117 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 988.48 | USD | 20251117 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 480.12 | USD | 20251117 |