| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.1 | USD | 20251130 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.59 | USD | 20251130 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.59 | USD | 20251129 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.59 | USD | 20251129 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.1 | USD | 20251128 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1031.23 | USD | 20251128 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1031.38 | USD | 20251127 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 960.74 | USD | 20251127 |