| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1044.0 | USD | 20251027 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1058.11 | USD | 20251027 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1043.31 | USD | 20251026 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251026 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1043.31 | USD | 20251025 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251025 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1043.31 | USD | 20251024 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.41 | USD | 20251024 |