| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Chemical Group Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250923 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250923 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1203.26 | USD | 20250923 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250923 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250923 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250923 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250923 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1139.93 | USD | 20250923 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1139.93 | USD | 20250923 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1139.93 | USD | 20250923 |