| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.73 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.81 | USD | 20251016 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.35 | USD | 20251015 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.91 | USD | 20251014 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.15 | USD | 20251013 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.45 | USD | 20251011 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.45 | USD | 20251010 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1209.53 | USD | 20251009 |