| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 956.32 | USD | 20250922 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1012.57 | USD | 20250922 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 815.68 | USD | 20250922 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 907.1 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 935.22 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.06 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |