| Vendor | Spec | Unit | Price | Currency | Date |
| 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 | 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 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1043.31 | USD | 20251024 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.56 | USD | 20251023 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.56 | USD | 20251023 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.56 | USD | 20251023 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1043.46 | USD | 20251023 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.02 | USD | 20251022 |