| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 987.65 | USD | 20251121 |
| Befar Group Co., Ltd. | China national standards | MT | 1185.19 | USD | 20251121 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1241.62 | USD | 20251121 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1255.73 | USD | 20251121 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1255.73 | USD | 20251121 |
| 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 |