| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 957.36 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1098.14 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1112.22 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1112.22 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1105.18 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1126.3 | USD | 20250908 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.96 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.2 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.2 | USD | 20250908 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 915.12 | USD | 20250908 |