| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1285.51 | USD | 20251128 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.59 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.73 | USD | 20251128 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1066.55 | USD | 20251128 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1257.26 | USD | 20251128 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1094.8 | USD | 20251128 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |