| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1340.39 | USD | 20251122 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.37 | USD | 20251122 |
| 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 Xima Supply Chain Management Co., Ltd. | China national standards | MT | 959.44 | USD | 20251121 |
| Dongying Huatai Fine 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 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |