| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1252.67 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.09 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.09 | USD | 20251011 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1111.92 | USD | 20251011 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.25 | USD | 20251011 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 886.72 | USD | 20251011 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 805.09 | USD | 20251011 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 809.31 | USD | 20251011 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.09 | USD | 20251011 |