| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.23 | USD | 20250906 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 534.73 | USD | 20250906 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.24 | USD | 20250906 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250906 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250906 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.01 | USD | 20250906 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.31 | USD | 20250906 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 394.01 | USD | 20250906 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250905 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250905 |