| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.23 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.23 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.27 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250906 |
| 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 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 534.54 | USD | 20250902 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1026.88 | USD | 20250902 |