| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 815.16 | USD | 20250926 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250926 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 815.16 | USD | 20250926 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 843.27 | USD | 20250926 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 843.27 | USD | 20250926 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 955.7 | USD | 20250926 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 955.7 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.27 | USD | 20250926 |