| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 534.54 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.14 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.14 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.14 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.14 | USD | 20250902 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 393.97 | USD | 20250901 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.2 | USD | 20250901 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 393.97 | USD | 20250901 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.25 | USD | 20250901 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.25 | USD | 20250901 |