| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251110 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251110 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1171.39 | USD | 20251110 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.96 | USD | 20251109 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1044.67 | USD | 20251109 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1044.67 | USD | 20251109 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251109 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251109 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251109 |