| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 491.85 | USD | 20251210 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 592.91 | USD | 20251210 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 607.75 | USD | 20251210 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 491.85 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.91 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 628.95 | USD | 20251210 |