| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 719.77 | USD | 20251028 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 719.52 | USD | 20251027 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 719.04 | USD | 20251024 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 719.14 | USD | 20251023 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 718.78 | USD | 20251022 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 719.02 | USD | 20251021 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 718.58 | USD | 20251020 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 718.83 | USD | 20251017 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 718.63 | USD | 20251016 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 718.36 | USD | 20251015 |