| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1064.14 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251017 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1113.48 | USD | 20251017 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1071.19 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251017 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251017 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 972.53 | USD | 20251017 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1268.18 | USD | 20251016 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 810.22 | USD | 20251016 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1113.18 | USD | 20251016 |