| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 916.15 | USD | 20251018 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 916.15 | USD | 20251017 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 915.91 | USD | 20251016 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 915.56 | USD | 20251015 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 915.22 | USD | 20251014 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 915.4 | USD | 20251013 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 957.1 | USD | 20251012 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 957.1 | USD | 20251011 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 957.1 | USD | 20251010 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 956.37 | USD | 20251009 |