| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 411.29 | USD | 20251210 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 411.29 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 325.07 | USD | 20251210 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 411.29 | USD | 20251210 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.82 | USD | 20251210 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1045.89 | USD | 20251210 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 486.2 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.01 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.01 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.01 | USD | 20251210 |