| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.81 | USD | 20251127 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 922.59 | USD | 20251127 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 762.94 | USD | 20251127 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.81 | USD | 20251127 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 755.87 | USD | 20251127 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 755.87 | USD | 20251127 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.99 | USD | 20251127 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 755.87 | USD | 20251127 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 762.94 | USD | 20251127 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 904.22 | USD | 20251127 |