| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 845.68 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 789.3 | USD | 20251018 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1085.29 | USD | 20251018 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1028.91 | USD | 20251018 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 761.11 | USD | 20251017 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1409.46 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251017 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 927.43 | USD | 20251017 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1409.46 | USD | 20251017 |