| Vendor | Spec | Unit | Price | Currency | Date |
| Linyi Haoxuan New Materials Co., Ltd. | China national standards | MT | 690.19 | USD | 20251015 |
| Linyi Haoxuan New Materials Co., Ltd. | China national standards | MT | 689.67 | USD | 20251011 |
| Linyi Haoxuan New Materials Co., Ltd. | China national standards | MT | 689.67 | USD | 20251011 |
| Linyi Haoxuan New Materials Co., Ltd. | China national standards | MT | 688.67 | USD | 20250926 |
| Linyi Haoxuan New Materials Co., Ltd. | China national standards | MT | 689.11 | USD | 20250922 |
| Linyi Haoxuan New Materials Co., Ltd. | China national standards | MT | 689.32 | USD | 20250918 |