| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.39 | USD | 20251204 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 989.64 | USD | 20251204 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 961.36 | USD | 20251204 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1173.43 | USD | 20251204 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.6 | USD | 20251204 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.53 | USD | 20251204 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1123.94 | USD | 20251204 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.6 | USD | 20251204 |