| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251012 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251012 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.05 | USD | 20251012 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 914.87 | USD | 20251012 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 802.27 | USD | 20251012 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 802.27 | USD | 20251012 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 767.09 | USD | 20251012 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1027.47 | USD | 20251011 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 788.2 | USD | 20251011 |