| Vendor | Spec | Unit | Price | Currency | Date |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1285.42 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |