| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251017 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251017 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.27 | USD | 20251016 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.27 | USD | 20251016 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.84 | USD | 20251015 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.84 | USD | 20251015 |