| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.89 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.89 | USD | 20251209 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 438.02 | USD | 20251209 |
| Wuhan Hengjiu Chemical Co., Ltd. | 90% | MT | 438.02 | USD | 20251209 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1045.6 | USD | 20251209 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 467.69 | USD | 20251209 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 411.17 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.89 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.89 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.89 | USD | 20251209 |