| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 367.47 | USD | 20251203 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.74 | USD | 20251203 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 339.2 | USD | 20251203 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 353.34 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 452.27 | USD | 20251203 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 989.34 | USD | 20251203 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 459.34 | USD | 20251203 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 459.34 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.88 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.0 | USD | 20251203 |