| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1855.18 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2192.49 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2192.49 | USD | 20250926 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2251.71 | USD | 20250925 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2195.42 | USD | 20250925 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1857.66 | USD | 20250925 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2195.42 | USD | 20250925 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2251.71 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2195.42 | USD | 20250924 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1857.66 | USD | 20250924 |