| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1121.69 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.66 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.67 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.67 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1093.65 | USD | 20250822 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1051.58 | USD | 20250822 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 981.48 | USD | 20250822 |
| Jiangsu Xiaomi Chemical Trading Co., Ltd. | China national standards | MT | 951.09 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 946.88 | USD | 20250821 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 939.86 | USD | 20250821 |