| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 721.02 | USD | 20251204 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.81 | USD | 20251203 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.4 | USD | 20251202 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.76 | USD | 20251201 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.76 | USD | 20251201 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.45 | USD | 20251128 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.55 | USD | 20251127 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.38 | USD | 20251126 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.07 | USD | 20251125 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.07 | USD | 20251125 |