| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.29 | USD | 20251020 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.29 | USD | 20251020 |
| Befar Group Co., Ltd. | China national standards | MT | 887.66 | USD | 20251020 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1028.56 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1204.68 | USD | 20251020 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1028.56 | USD | 20251020 |