| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251012 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1076.74 | USD | 20251012 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251011 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251011 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1055.62 | USD | 20251011 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1337.12 | USD | 20251011 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1224.52 | USD | 20251011 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1379.35 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1266.75 | USD | 20251011 |