| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 819.63 | USD | 20251208 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 819.28 | USD | 20251202 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 819.28 | USD | 20251202 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 819.34 | USD | 20251128 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 818.46 | USD | 20251113 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 818.45 | USD | 20251111 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 817.85 | USD | 20251023 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 816.96 | USD | 20251015 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 815.73 | USD | 20251009 |