| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.74 | USD | 20251029 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.7 | USD | 20251028 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.62 | USD | 20251027 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.48 | USD | 20251024 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.51 | USD | 20251023 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.4 | USD | 20251022 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.48 | USD | 20251021 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.35 | USD | 20251020 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.42 | USD | 20251017 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 211.28 | USD | 20251015 |