| Vendor | Spec | Unit | Price | Currency | Date |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2254.54 | USD | 20251016 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1859.99 | USD | 20251016 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2198.17 | USD | 20251016 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2197.34 | USD | 20251015 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2253.68 | USD | 20251015 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1859.29 | USD | 20251015 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2196.53 | USD | 20251014 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2252.85 | USD | 20251014 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1858.61 | USD | 20251014 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2196.53 | USD | 20251014 |