| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251018 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1085.29 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.53 | USD | 20251018 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251018 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 1183.95 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251018 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 986.62 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 887.96 | USD | 20251018 |