| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.93 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 846.9 | USD | 20251124 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 846.9 | USD | 20251124 |