| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1268.43 | USD | 20251022 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1367.55 | USD | 20251021 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1290.0 | USD | 20251021 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1289.22 | USD | 20251020 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1197.64 | USD | 20251020 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1366.72 | USD | 20251020 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1198.04 | USD | 20251018 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1367.18 | USD | 20251018 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1169.85 | USD | 20251017 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1289.66 | USD | 20251017 |