| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 422.95 | USD | 20251021 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 422.95 | USD | 20251021 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 422.7 | USD | 20251020 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 422.7 | USD | 20251020 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 422.73 | USD | 20251016 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 422.73 | USD | 20251016 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.58 | USD | 20251013 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.58 | USD | 20251013 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.32 | USD | 20251011 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 436.32 | USD | 20251011 |