| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.58 | USD | 20251028 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.58 | USD | 20251028 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.62 | USD | 20251025 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.62 | USD | 20251025 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.62 | USD | 20251024 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.62 | USD | 20251024 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.59 | USD | 20251021 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.59 | USD | 20251021 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.02 | USD | 20251020 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 944.02 | USD | 20251020 |