| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 692.3 | USD | 20251127 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 692.13 | USD | 20251126 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.84 | USD | 20251125 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.84 | USD | 20251125 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.63 | USD | 20251124 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.36 | USD | 20251121 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.07 | USD | 20251120 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.39 | USD | 20251119 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.54 | USD | 20251118 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 691.93 | USD | 20251117 |