| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 917.35 | USD | 20251028 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 916.42 | USD | 20251025 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251025 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 916.42 | USD | 20251024 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 916.4 | USD | 20251021 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 915.84 | USD | 20251020 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |