| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 919.56 | USD | 20251211 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1131.77 | USD | 20251211 |
| Shandong Luxi Chemical Co., Ltd. | China national standards | MT | 1273.24 | USD | 20251211 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1202.5 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 976.15 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Luxi Chemical Co., Ltd. | China national standards | MT | 1018.59 | USD | 20251211 |