| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.01 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.63 | USD | 20251126 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 786.77 | USD | 20251126 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 974.63 | USD | 20251126 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 727.44 | USD | 20251126 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.44 | USD | 20251126 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1094.69 | USD | 20251126 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 904.01 | USD | 20251126 |