| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2202.27 | USD | 20251107 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2202.27 | USD | 20251107 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.46 | USD | 20251107 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 2257.81 | USD | 20251106 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.37 | USD | 20251106 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.7 | USD | 20251106 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2201.37 | USD | 20251106 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2256.67 | USD | 20251105 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2200.25 | USD | 20251105 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1861.75 | USD | 20251105 |