| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1142.86 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.34 | USD | 20251121 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 790.12 | USD | 20251121 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 846.56 | USD | 20251121 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 959.44 | USD | 20251121 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 846.56 | USD | 20251121 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 846.56 | USD | 20251121 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 888.89 | USD | 20251121 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 846.56 | USD | 20251121 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 888.89 | USD | 20251121 |