| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.61 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 904.54 | USD | 20251203 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 918.68 | USD | 20251203 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1003.48 | USD | 20251203 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1272.01 | USD | 20251203 |