| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.39 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 904.35 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.34 | USD | 20250818 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 841.26 | USD | 20250818 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 841.26 | USD | 20250818 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 785.17 | USD | 20250818 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 813.21 | USD | 20250818 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 897.34 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.66 | USD | 20250817 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.66 | USD | 20250817 |