| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1064.43 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 972.79 | USD | 20251021 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 972.79 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1070.83 | USD | 20251020 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1099.01 | USD | 20251020 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1099.01 | USD | 20251020 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 972.2 | USD | 20251020 |