| Vendor | Spec | Unit | Price | Currency | Date |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1281.56 | USD | 20251013 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 887.24 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.82 | USD | 20251013 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251013 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1112.57 | USD | 20251013 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.74 | USD | 20251013 |