| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 805.69 | USD | 20251015 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1070.5 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1063.46 | USD | 20251015 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 971.9 | USD | 20251015 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.98 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.9 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1253.61 | USD | 20251015 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1112.75 | USD | 20251015 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1112.75 | USD | 20251015 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1267.69 | USD | 20251015 |