| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.13 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1215.39 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Hangjin Technology Co., Ltd. | China national standards | MT | 1017.54 | USD | 20251201 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1243.66 | USD | 20251201 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |