| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251206 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 763.26 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |