| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 819.02 | USD | 20251117 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 819.02 | USD | 20251117 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.92 | USD | 20251116 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.92 | USD | 20251116 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.92 | USD | 20251115 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.92 | USD | 20251115 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.92 | USD | 20251114 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.92 | USD | 20251114 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.46 | USD | 20251113 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 818.46 | USD | 20251113 |