| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1214.76 | USD | 20251126 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1115.88 | USD | 20251126 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1257.13 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1214.76 | USD | 20251126 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1144.13 | USD | 20251126 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1059.38 | USD | 20251126 |
| Wudi Xinyue Chemical Group Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1200.63 | USD | 20251126 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1045.26 | USD | 20251126 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |