| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2196.97 | USD | 20251013 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2253.3 | USD | 20251013 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1858.97 | USD | 20251013 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2196.97 | USD | 20251013 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2195.7 | USD | 20251012 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2195.7 | USD | 20251011 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 2252.0 | USD | 20251011 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1857.9 | USD | 20251011 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2252.0 | USD | 20251010 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2195.7 | USD | 20251010 |