| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.23 | USD | 20251115 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.2 | USD | 20251115 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.8 | USD | 20251115 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.2 | USD | 20251115 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251115 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 729.97 | USD | 20251115 |
| Hunan Yuanshuo Fine Chemical Co., Ltd. | China national standards | MT | 903.64 | USD | 20251115 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 729.97 | USD | 20251115 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 729.97 | USD | 20251114 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.2 | USD | 20251114 |