| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 972.46 | USD | 20251022 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.49 | USD | 20251022 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 768.1 | USD | 20251022 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |