| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.62 | USD | 20251031 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251031 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.56 | USD | 20251031 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1114.56 | USD | 20251031 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251031 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 818.28 | USD | 20251031 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1100.45 | USD | 20251031 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1283.86 | USD | 20251031 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1283.86 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.48 | USD | 20251031 |