| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.19 | USD | 20251104 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.19 | USD | 20251104 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.43 | USD | 20251103 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.43 | USD | 20251103 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.26 | USD | 20251101 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.26 | USD | 20251101 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.26 | USD | 20251031 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.26 | USD | 20251031 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.75 | USD | 20251029 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 945.75 | USD | 20251029 |