| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 901.14 | USD | 20251014 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 929.3 | USD | 20251014 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 760.34 | USD | 20251014 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 929.3 | USD | 20251014 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 929.3 | USD | 20251014 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 887.06 | USD | 20251014 |