| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.81 | USD | 20251016 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 789.09 | USD | 20251016 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 1000.45 | USD | 20251016 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 845.13 | USD | 20251015 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 788.79 | USD | 20251015 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.96 | USD | 20251015 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 880.34 | USD | 20251015 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 887.39 | USD | 20251015 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.98 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.41 | USD | 20251015 |