| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 818.46 | USD | 20251113 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 847.03 | USD | 20251107 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 846.25 | USD | 20251105 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 860.77 | USD | 20251103 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 860.61 | USD | 20251031 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 875.17 | USD | 20251029 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 874.71 | USD | 20251027 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 874.25 | USD | 20251023 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 887.9 | USD | 20251022 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 887.66 | USD | 20251020 |