| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 825.51 | USD | 20251113 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 832.91 | USD | 20251107 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 832.15 | USD | 20251105 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 825.49 | USD | 20251103 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 832.39 | USD | 20251031 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 818.71 | USD | 20251029 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 818.27 | USD | 20251027 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 831.95 | USD | 20251023 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 852.67 | USD | 20251022 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 880.62 | USD | 20251020 |