| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2195.42 | USD | 20250923 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2251.71 | USD | 20250923 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1857.66 | USD | 20250923 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2195.42 | USD | 20250923 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2250.16 | USD | 20250922 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1856.38 | USD | 20250922 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2193.91 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2193.91 | USD | 20250922 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2249.47 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2193.23 | USD | 20250919 |