| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1213.4 | USD | 20251121 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1199.29 | USD | 20251121 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1058.2 | USD | 20251121 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1622.57 | USD | 20251121 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1171.08 | USD | 20251121 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1241.62 | USD | 20251121 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |