| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1102.41 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.61 | USD | 20251203 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 974.66 | USD | 20251202 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 974.66 | USD | 20251202 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 974.66 | USD | 20251202 |
| China national standards | MT | 1031.16 | USD | 20251202 | |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 974.66 | USD | 20251202 |