| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 1198.04 | USD | 20251018 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 972.53 | USD | 20251018 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1155.76 | USD | 20251018 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1198.04 | USD | 20251018 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 916.15 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1198.04 | USD | 20251018 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 934.47 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 909.1 | USD | 20251017 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 937.29 | USD | 20251017 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 909.1 | USD | 20251017 |