| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1171.13 | USD | 20251119 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1178.18 | USD | 20251119 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.95 | USD | 20251119 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1213.46 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.77 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1241.96 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1188.33 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251118 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1171.39 | USD | 20251118 |