| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1413.77 | USD | 20251204 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1413.77 | USD | 20251204 |
| Yixing Wencheng Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 749.3 | USD | 20251204 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 720.81 | USD | 20251203 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 720.81 | USD | 20251203 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 763.21 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.21 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.21 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.21 | USD | 20251203 |