| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.22 | USD | 20251210 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 925.49 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 946.69 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 890.17 | USD | 20251209 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 763.0 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 918.43 | USD | 20251209 |