| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1198.4 | USD | 20251024 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1092.66 | USD | 20251024 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 958.72 | USD | 20251024 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Befar Group Co., Ltd. | China national standards | MT | 888.22 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1177.25 | USD | 20251024 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1127.9 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.5 | USD | 20251024 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1127.9 | USD | 20251024 |