| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251017 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251017 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251017 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251017 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251017 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1205.09 | USD | 20251017 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251017 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.09 | USD | 20251017 |