| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1016.58 | USD | 20251125 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1877.84 | USD | 20251125 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1101.29 | USD | 20251125 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1101.29 | USD | 20251125 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1073.05 | USD | 20251125 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1101.29 | USD | 20251125 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.86 | USD | 20251125 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.13 | USD | 20251125 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1073.05 | USD | 20251125 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 903.62 | USD | 20251125 |