| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.06 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 2257.5 | USD | 20251121 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.43 | USD | 20251121 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 2256.54 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2200.13 | USD | 20251120 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1861.65 | USD | 20251120 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 2200.13 | USD | 20251120 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 2257.59 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.15 | USD | 20251119 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.51 | USD | 20251119 |