| Vendor | Spec | Unit | Price | Currency | Date |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 918.16 | USD | 20251202 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 763.15 | USD | 20251201 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 918.22 | USD | 20251130 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 762.83 | USD | 20251130 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 762.83 | USD | 20251129 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 762.83 | USD | 20251128 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 918.22 | USD | 20251128 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 918.35 | USD | 20251127 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 762.94 | USD | 20251127 |
| Jining Zhongyin ELECTRO-CHEMICAL Co., Ltd. | China national standards | MT | 918.13 | USD | 20251126 |