| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 198.06 | USD | 20251211 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.87 | USD | 20251210 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.82 | USD | 20251209 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.84 | USD | 20251208 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.88 | USD | 20251205 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.93 | USD | 20251204 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.87 | USD | 20251203 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.76 | USD | 20251202 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.85 | USD | 20251201 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.77 | USD | 20251128 |