| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250926 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250926 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 815.16 | USD | 20250926 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.16 | USD | 20250926 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.16 | USD | 20250926 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250926 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 843.27 | USD | 20250926 |