| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1307.98 | USD | 20251009 |
| Dongying Huatai Chemical Group Co., Ltd. | China national standards | MT | 1209.53 | USD | 20251009 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1209.53 | USD | 20251009 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1202.5 | USD | 20251009 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1202.5 | USD | 20251009 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1202.5 | USD | 20251009 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1202.5 | USD | 20251009 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1202.5 | USD | 20251009 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1044.98 | USD | 20251009 |
| Befar Group Co., Ltd. | China national standards | MT | 1082.95 | USD | 20251009 |