| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1347.07 | USD | 20250506 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1388.62 | USD | 20250430 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1388.33 | USD | 20250429 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1388.06 | USD | 20250428 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1387.62 | USD | 20250427 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1387.62 | USD | 20250425 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1387.0 | USD | 20250424 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1387.0 | USD | 20250424 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1386.65 | USD | 20250423 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1387.46 | USD | 20250422 |