| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251116 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1073.07 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251116 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1073.07 | USD | 20251116 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 988.35 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251116 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251116 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1214.26 | USD | 20251115 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1242.5 | USD | 20251115 |
| Befar Group Co., Ltd. | China national standards | MT | 889.52 | USD | 20251115 |